diff --git a/B07_DesignDetail/openwebcad/src/commands/commands.modify.ts b/B07_DesignDetail/openwebcad/src/commands/commands.modify.ts
index 1efeadeaf..a4bae8470 100644
--- a/B07_DesignDetail/openwebcad/src/commands/commands.modify.ts
+++ b/B07_DesignDetail/openwebcad/src/commands/commands.modify.ts
@@ -17,6 +17,7 @@ import {
 	chamferToolStateMachine,
 	filletToolStateMachine,
 } from '../tools/modify/corner-tools';
+import { lengthenToolStateMachine } from '../tools/modify/lengthen-tool';
 import {
 	drawOrderBackToolStateMachine,
 	drawOrderFrontToolStateMachine,
@@ -35,7 +36,6 @@ import {
 import { offsetToolStateMachine } from '../tools/modify/offset-tool';
 import {
 	alignToolStateMachine,
-	lengthenToolStateMachine,
 	mirrorToolStateMachine,
 	stretchToolStateMachine,
 } from '../tools/modify/transform-tools';
diff --git a/B07_DesignDetail/openwebcad/src/entities/MeasurementEntity.ts b/B07_DesignDetail/openwebcad/src/entities/MeasurementEntity.ts
index 08504b3b9..36f3e211b 100644
--- a/B07_DesignDetail/openwebcad/src/entities/MeasurementEntity.ts
+++ b/B07_DesignDetail/openwebcad/src/entities/MeasurementEntity.ts
@@ -51,6 +51,8 @@ export class MeasurementEntity implements Entity {
 	private startPoint: Point;
 	private endPoint: Point;
 	private offsetPoint: Point;
+	/** 치수 문자 바꿈(DIMLINEAR 문자(T)) — `<>` = 잰 값 · 없으면 잰 값 */
+	public textOverride?: string;
 
 	constructor(layerId: string, startPoint: Point, endPoint: Point, offsetPoint: Point) {
 		this.layerId = layerId;
@@ -75,6 +77,17 @@ export class MeasurementEntity implements Entity {
 		this.offsetPoint = point;
 	}
 
+	/** 잰 값(치수 소수 자릿수) */
+	public getMeasuredText(): string {
+		return String(round(pointDistance(this.startPoint, this.endPoint), getDimDecimals()));
+	}
+
+	/** 보이는 치수 문자 */
+	public getLabel(): string {
+		const measured = this.getMeasuredText();
+		return this.textOverride ? this.textOverride.replaceAll('<>', measured) : measured;
+	}
+
 	public getDrawPoints() {
 		// Return if measurement is zero length
 		if (isPointEqual(this.startPoint, this.endPoint)) {
@@ -301,7 +314,7 @@ export class MeasurementEntity implements Entity {
 		drawController.drawLine(offsetStartPointMargin, offsetStartPointExtend);
 		drawController.drawLine(offsetEndPointMargin, offsetEndPointExtend);
 
-		const distance = String(round(pointDistance(this.startPoint, this.endPoint), getDimDecimals()));
+		const distance = this.getLabel();
 		const originalTextDirection = normalUnit.rotate90CW();
 		let finalTextDirection = originalTextDirection;
 		if (
@@ -343,12 +356,14 @@ export class MeasurementEntity implements Entity {
 	}
 
 	public clone(): MeasurementEntity {
-		return new MeasurementEntity(
+		const copy = new MeasurementEntity(
 			getActiveLayerId(),
 			this.startPoint.clone(),
 			this.endPoint.clone(),
 			this.offsetPoint.clone()
 		);
+		copy.textOverride = this.textOverride;
+		return copy;
 	}
 
 	public intersectsWithBox(box: Box): boolean {
@@ -416,7 +431,7 @@ export class MeasurementEntity implements Entity {
 		];
 
 		// Calculate text properties
-		const distance = String(round(pointDistance(this.startPoint, this.endPoint), getDimDecimals()));
+		const distance = this.getLabel();
 		const worldFactor = annotationWorldFactor();
 		const textHeight = getDimTextHeight() / worldFactor;
 		// Estimate width: textString.length * fontSize * aspectRatioFactor
@@ -582,6 +597,7 @@ export class MeasurementEntity implements Entity {
 				startPoint: { x: this.startPoint.x, y: this.startPoint.y },
 				endPoint: { x: this.endPoint.x, y: this.endPoint.y },
 				offsetPoint: { x: this.offsetPoint.x, y: this.offsetPoint.y },
+				...(this.textOverride ? { textOverride: this.textOverride } : {}),
 			},
 		};
 	}
@@ -611,6 +627,7 @@ export class MeasurementEntity implements Entity {
 		measurementEntity.lineColor = jsonEntity.lineColor;
 		measurementEntity.lineWidth = jsonEntity.lineWidth;
 		measurementEntity.lineDash = jsonEntity.lineDash;
+		measurementEntity.textOverride = jsonEntity.shapeData.textOverride;
 		return measurementEntity;
 	}
 }
@@ -619,4 +636,5 @@ export interface MeasurementJsonData {
 	startPoint: { x: number; y: number };
 	endPoint: { x: number; y: number };
 	offsetPoint: { x: number; y: number };
+	textOverride?: string;
 }
diff --git a/B07_DesignDetail/openwebcad/src/inputController/prompt-input.ts b/B07_DesignDetail/openwebcad/src/inputController/prompt-input.ts
index 44978e933..d08439020 100644
--- a/B07_DesignDetail/openwebcad/src/inputController/prompt-input.ts
+++ b/B07_DesignDetail/openwebcad/src/inputController/prompt-input.ts
@@ -379,8 +379,9 @@ export function routeTyped(raw: string): void {
 		return;
 	}
 	if (text.startsWith("'")) return routeTransparent(text.slice(1));
-	const own = subPrompt()?.onText?.(text);
-	if (own) return settle(own);
+	const textSub = subPrompt();
+	const own = textSub?.onText?.(text);
+	if (textSub && own) return settle(textSub, own);
 	if (prompt.kind === 'idle') {
 		// ⑨ 이름 > 내 별칭 > 기본 별칭 딱 맞음만
 		const command = resolveCommandInput(text);
diff --git a/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-radial-tools.ts b/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-radial-tools.ts
index 174c26035..3776892b5 100644
--- a/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-radial-tools.ts
+++ b/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-radial-tools.ts
@@ -1,6 +1,12 @@
-/** 반지름·지름·각도·호길이·세로좌표 치수와 중심 표식 (조사표 5절) */
+/**
+ * 반지름·지름·각도·호길이·세로좌표 치수와 중심 표식 (조사표 5절).
+ * 오토캐드 물음 차례(337 설계 1-2) — DIMRADIUS · DIMDIAMETER = 「호 또는 원 선택:」 →
+ * 「치수선의 위치 지정 또는 [문자(T)]:」 · 한 번 뒤 끝 · 그 밖 치수 = 물음 글만.
+ */
 import { Arc, Circle, Point } from '@flatten-js/core';
 import { toast } from 'react-toastify';
+import { OPT, type OptionSpec } from '../../commands/prompt';
+import { logLine } from '../../commands/run-command';
 import { getDimDecimals } from '../../commands/dim-settings';
 import type { Entity } from '../../entities/Entity';
 import { MeasurementEntity } from '../../entities/MeasurementEntity';
@@ -8,7 +14,7 @@ import { polylineLength, sampleEntityPoints } from '../../helpers/geometry/sampl
 import { addEntities, getEntities, setEntities, setSelectedEntityIds } from '../../state';
 import { Tool } from '../../tools';
 import { arcEntity, lineEntity } from '../factories/entity-factory';
-import { createSequenceTool } from '../factories/sequence-tool';
+import { createSequenceTool, type SequenceInput } from '../factories/sequence-tool';
 import { annotationText, arrowHead, dimensionText } from './annotation.helpers';
 
 interface CircularShape {
@@ -24,7 +30,24 @@ function circularOf(entity: Entity): CircularShape | null {
 	return null;
 }
 
-function radialDimension(entity: Entity, textPoint: Point, diameter: boolean): Entity[] | null {
+/** 잰 값 글(「R10.00」 · 「Ø20.00」) */
+function radialLabel(entity: Entity, diameter: boolean): string | null {
+	const circular = circularOf(entity);
+	if (!circular) return null;
+	const value = diameter ? circular.radius * 2 : circular.radius;
+	return `${diameter ? 'Ø' : 'R'}${value.toFixed(getDimDecimals())}`;
+}
+
+/** 바꾼 글(`<>` = 잰 값) · 없으면 잰 값 */
+const labelWith = (measured: string, text?: string) =>
+	text && text !== '<>' ? text.replaceAll('<>', measured) : measured;
+
+function radialDimension(
+	entity: Entity,
+	textPoint: Point,
+	diameter: boolean,
+	text?: string
+): Entity[] | null {
 	const circular = circularOf(entity);
 	if (!circular) return null;
 
@@ -43,52 +66,71 @@ function radialDimension(entity: Entity, textPoint: Point, diameter: boolean): E
 	return [
 		lineEntity(start, textPoint),
 		arrowHead(edge, circular.center),
-		dimensionText(
-			diameter ? circular.radius * 2 : circular.radius,
-			textPoint,
-			diameter ? 'Ø' : 'R'
-		),
+		text && text !== '<>'
+			? annotationText(labelWith(radialLabel(entity, diameter) as string, text), textPoint)
+			: dimensionText(
+					diameter ? circular.radius * 2 : circular.radius,
+					textPoint,
+					diameter ? 'Ø' : 'R'
+				),
 	];
 }
 
-export const dimRadiusToolStateMachine = createSequenceTool({
-	tool: Tool.DIMRADIUS,
-	steps: [
-		{ kind: 'entity', instructions: '반지름을 기입할 원 또는 호를 선택하십시오.' },
-		{ kind: 'point', instructions: '치수 문자 위치를 지정하십시오.' },
-	],
-	commit: (input) => {
-		const parts = radialDimension(input.entity(0), input.point(1), false);
-		if (!parts) {
-			toast.warn('원 또는 호를 선택하십시오.');
-			return;
-		}
-		addEntities(parts, true);
-	},
-});
+const MTEXT: OptionSpec = { key: 'MTEXT', kw: 'M', en: 'MTEXT', label: '여러 줄 문자' };
+const ANGLE: OptionSpec = { key: 'ANGLE', kw: 'A', en: 'ANGLE', label: '각도' };
 
-export const dimDiameterToolStateMachine = createSequenceTool({
-	tool: Tool.DIMDIAMETER,
-	steps: [
-		{ kind: 'entity', instructions: '지름을 기입할 원 또는 호를 선택하십시오.' },
-		{ kind: 'point', instructions: '치수 문자 위치를 지정하십시오.' },
-	],
-	commit: (input) => {
-		const parts = radialDimension(input.entity(0), input.point(1), true);
-		if (!parts) {
-			toast.warn('원 또는 호를 선택하십시오.');
-			return;
-		}
-		addEntities(parts, true);
-	},
-});
+/** DIMRADIUS · DIMDIAMETER — 원 · 호 → [문자(T)] → 위치 */
+function radialTool(tool: Tool, diameter: boolean) {
+	const measured = (input: SequenceInput) =>
+		input.has('obj') ? radialLabel(input.get<Entity>('obj'), diameter) : null;
+	return createSequenceTool({
+		tool,
+		steps: [
+			{ kind: 'entity', id: 'obj', prompt: { text: '호 또는 원 선택' } },
+			{
+				kind: 'text',
+				id: 'txt',
+				when: (input) => input.mode === 'text',
+				next: 'place',
+				defaultValue: '<>',
+				prompt: (input) => {
+					const value = measured(input);
+					return {
+						text: '치수 문자 입력',
+						...(value === null ? {} : { default: { kind: 'enter' as const, label: value } }),
+					};
+				},
+			},
+			{
+				kind: 'point',
+				id: 'place',
+				prompt: { text: '치수선의 위치 지정', options: [OPT.TEXT], absent: [MTEXT, ANGLE] },
+				options: { TEXT: { mode: 'text', next: 'txt' } },
+			},
+		],
+		commit: (input) => {
+			const entity = input.get<Entity>('obj');
+			const text = input.has('txt') ? input.get<string>('txt') : undefined;
+			const parts = radialDimension(entity, input.get<Point>('place'), diameter, text);
+			if (!parts) {
+				toast.warn('원 또는 호를 선택하십시오.');
+				return;
+			}
+			addEntities(parts, true);
+			logLine(`치수 문자 = ${labelWith(radialLabel(entity, diameter) as string, text)}`);
+		},
+	});
+}
+
+export const dimRadiusToolStateMachine = radialTool(Tool.DIMRADIUS, false);
+export const dimDiameterToolStateMachine = radialTool(Tool.DIMDIAMETER, true);
 
 export const dimAngularToolStateMachine = createSequenceTool({
 	tool: Tool.DIMANGULAR,
 	steps: [
-		{ kind: 'point', instructions: '각의 꼭짓점을 지정하십시오.' },
-		{ kind: 'point', instructions: '첫 번째 변 위의 점을 지정하십시오.' },
-		{ kind: 'point', instructions: '두 번째 변 위의 점을 지정하십시오.' },
+		{ kind: 'point', prompt: { text: '각도 정점 지정' } },
+		{ kind: 'point', prompt: { text: '첫 번째 각도 끝점 지정' } },
+		{ kind: 'point', prompt: { text: '두 번째 각도 끝점 지정' } },
 	],
 	commit: (input) => {
 		const [vertex, first, second] = input.points();
@@ -128,8 +170,8 @@ export const dimAngularToolStateMachine = createSequenceTool({
 export const dimArcToolStateMachine = createSequenceTool({
 	tool: Tool.DIMARC,
 	steps: [
-		{ kind: 'entity', instructions: '호 길이를 기입할 호를 선택하십시오.' },
-		{ kind: 'point', instructions: '치수 문자 위치를 지정하십시오.' },
+		{ kind: 'entity', prompt: { text: '호 또는 폴리선 호 세그먼트 선택' } },
+		{ kind: 'point', prompt: { text: '호 길이 치수 위치 지정' } },
 	],
 	commit: (input) => {
 		const entity = input.entity(0);
@@ -146,8 +188,8 @@ export const dimArcToolStateMachine = createSequenceTool({
 export const dimOrdinateToolStateMachine = createSequenceTool({
 	tool: Tool.DIMORDINATE,
 	steps: [
-		{ kind: 'point', instructions: '좌표를 기입할 피처 위치를 지정하십시오.' },
-		{ kind: 'point', instructions: '지시선 끝점을 지정하십시오.' },
+		{ kind: 'point', prompt: { text: '피쳐 위치 지정' } },
+		{ kind: 'point', prompt: { text: '지시선 끝점 지정' } },
 	],
 	commit: (input) => {
 		const [feature, leaderEnd] = input.points();
diff --git a/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-tools.ts b/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-tools.ts
index c29a53dae..02c0a5c51 100644
--- a/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-tools.ts
+++ b/B07_DesignDetail/openwebcad/src/tools/annotate/dimension-tools.ts
@@ -1,27 +1,55 @@
-/** 선형 치수 계열 — 선형·정렬·기준선·연속·빠른 치수·자동 치수 (조사표 5절) */
+/**
+ * 선형 치수 계열 — 선형·정렬·기준선·연속·빠른 치수·자동 치수 (조사표 5절).
+ * 오토캐드 물음 차례(337 설계 1-2) — DIMLINEAR · DIMALIGNED = 원점 둘(빈 Enter = 객체 선택) → 치수선 위치
+ * [문자(T)/수평(H)/수직(V)] · 한 번 뒤 끝 · DIMCONTINUE · DIMBASELINE = 원점 되풀이 [명령 취소(U)] · 빈 Enter 끝.
+ */
 import { Circle, Point } from '@flatten-js/core';
 import { toast } from 'react-toastify';
-import { EntityName } from '../../entities/Entity';
+import { assign, createMachine } from 'xstate';
+import { type OptionSpec, type PromptSpec, OPT, SELECT_OBJECTS } from '../../commands/prompt';
+import { logLine } from '../../commands/run-command';
+import { EntityName, type Entity } from '../../entities/Entity';
 import { MeasurementEntity } from '../../entities/MeasurementEntity';
+import type { PolyLineEntity } from '../../entities/PolyLineEntity';
 import { sampleEntityPoints } from '../../helpers/geometry/sample-entity';
-import { addEntities, getActiveLayerId, setSelectedEntityIds } from '../../state';
+import { getPointFromEvent } from '../../helpers/get-point-from-event';
+import { notice } from '../../inputController/prompt-input';
+import {
+	addEntities,
+	getActiveLayerId,
+	setAngleGuideOriginPoint,
+	setSelectedEntityIds,
+	setShouldDrawHelpers,
+	undo,
+} from '../../state';
 import { Tool } from '../../tools';
 import { styled } from '../factories/entity-factory';
-import { createSequenceTool } from '../factories/sequence-tool';
+import { createSequenceTool, type SequenceInput } from '../factories/sequence-tool';
+import { END_STATE, type PointInputEvent, type StateEvent, type ToolContext } from '../tool.types';
 import { getLastDimension, rememberDimension } from './annotation.helpers';
 
 /** 치수 객체 하나 만들기 — 현재 선 특성을 입히고 직전 치수로 기억한다 */
-function makeDimension(start: Point, end: Point, offset: Point): MeasurementEntity {
+function makeDimension(start: Point, end: Point, offset: Point, text?: string): MeasurementEntity {
 	const dimension = styled(new MeasurementEntity(getActiveLayerId(), start, end, offset));
+	if (text && text !== '<>') dimension.textOverride = text;
 	rememberDimension(dimension);
 	return dimension;
 }
 
+type Fixed = 'H' | 'V' | null;
+
 /**
- * 선형 치수 — 치수선을 놓은 방향으로 수평/수직을 고른다.
+ * 선형 치수 — 수평(H) · 수직(V) 고정이면 그 방향, 아니면 치수선을 놓은 방향으로 고른다.
  * 위·아래에 놓으면 가로 거리, 좌·우에 놓으면 세로 거리를 잰다 (AutoCAD와 같다).
  */
-function projectForLinear(start: Point, end: Point, offset: Point): [Point, Point] {
+function projectForLinear(
+	start: Point,
+	end: Point,
+	offset: Point,
+	fixed: Fixed = null
+): [Point, Point] {
+	if (fixed === 'H') return [start, new Point(end.x, start.y)];
+	if (fixed === 'V') return [start, new Point(start.x, end.y)];
 	const horizontalSpan = Math.abs(end.x - start.x);
 	const verticalSpan = Math.abs(end.y - start.y);
 	const offsetIsVertical =
@@ -32,89 +60,268 @@ function projectForLinear(start: Point, end: Point, offset: Point): [Point, Poin
 	return [start, new Point(start.x, end.y)];
 }
 
-export const dimLinearToolStateMachine = createSequenceTool({
-	tool: Tool.DIMLINEAR,
-	steps: [
-		{ kind: 'point', instructions: '첫 번째 치수보조선 원점을 지정하십시오.' },
-		{ kind: 'point', instructions: '두 번째 치수보조선 원점을 지정하십시오.' },
-		{ kind: 'point', instructions: '치수선 위치를 지정하십시오.' },
-	],
-	preview: (input) => {
-		const points = input.points();
-		if (points.length !== 2) return [];
-		const [start, end] = projectForLinear(points[0], points[1], input.cursor);
-		return [new MeasurementEntity(getActiveLayerId(), start, end, input.cursor)];
-	},
-	commit: (input) => {
-		const [first, second, offset] = input.points();
-		const [start, end] = projectForLinear(first, second, offset);
-		addEntities([makeDimension(start, end, offset)], true);
-	},
-});
-
-export const dimAlignedToolStateMachine = createSequenceTool({
-	tool: Tool.DIMALIGNED,
-	steps: [
-		{ kind: 'point', instructions: '첫 번째 치수보조선 원점을 지정하십시오.' },
-		{ kind: 'point', instructions: '두 번째 치수보조선 원점을 지정하십시오.' },
-		{ kind: 'point', instructions: '치수선 위치를 지정하십시오.' },
-	],
-	preview: (input) => {
-		const points = input.points();
-		if (points.length !== 2) return [];
-		return [new MeasurementEntity(getActiveLayerId(), points[0], points[1], input.cursor)];
-	},
-	commit: (input) => {
-		const [start, end, offset] = input.points();
-		addEntities([makeDimension(start, end, offset)], true);
-	},
-});
-
-export const dimBaselineToolStateMachine = createSequenceTool({
-	tool: Tool.DIMBASELINE,
-	steps: [{ kind: 'point', instructions: '다음 치수보조선 원점을 지정하십시오.' }],
-	commit: (input) => {
-		const previous = getLastDimension();
-		if (!previous) {
-			toast.warn('먼저 치수를 하나 작성하십시오.');
-			return;
-		}
-		const start = previous.getStartPoint();
-		const offset = previous.getOffsetPoint();
-		// 기준선 치수는 같은 시작점에서 재고, 치수선을 한 칸 더 띄운다
-		const spacing = offset.distanceTo(start)[0] * 0.35 || 10;
-		const direction = new Point(offset.x - start.x, offset.y - start.y);
-		const length = Math.hypot(direction.x, direction.y) || 1;
-		const nextOffset = new Point(
-			offset.x + (direction.x / length) * spacing,
-			offset.y + (direction.y / length) * spacing
+/** 객체 선택 — 선 · 폴리선(누른 토막) · 그 밖은 처음 · 끝 점 */
+function endsOf(entity: Entity, pick: Point): [Point, Point] | null {
+	let target = entity;
+	if (entity.getType() === EntityName.PolyLine) {
+		const pieces = (entity as PolyLineEntity).getEntities();
+		target = pieces.reduce(
+			(best, piece) =>
+				(piece.getShape()?.distanceTo(pick)[0] ?? Number.POSITIVE_INFINITY) <
+				(best.getShape()?.distanceTo(pick)[0] ?? Number.POSITIVE_INFINITY)
+					? piece
+					: best,
+			pieces[0] ?? entity
 		);
-		addEntities([makeDimension(start, input.point(0), nextOffset)], true);
-	},
-});
+	}
+	const points = sampleEntityPoints(target);
+	if (points.length < 2) return null;
+	return [points[0], points[points.length - 1]];
+}
 
-export const dimContinueToolStateMachine = createSequenceTool({
-	tool: Tool.DIMCONTINUE,
-	steps: [{ kind: 'point', instructions: '다음 치수보조선 원점을 지정하십시오.' }],
-	commit: (input) => {
-		const previous = getLastDimension();
-		if (!previous) {
-			toast.warn('먼저 치수를 하나 작성하십시오.');
-			return;
-		}
-		addEntities(
-			[makeDimension(previous.getEndPoint(), input.point(0), previous.getOffsetPoint())],
-			true
-		);
-	},
+const option = (key: string, kw: string, label: string): OptionSpec => ({
+	key,
+	kw,
+	en: key,
+	label,
 });
+/** 빈 Enter = 객체 선택 — 숨은 옵션(그림은 <객체 선택>) */
+const OBJECT = { ...option('OBJECT', 'OBJECT', '객체 선택'), hidden: true as const };
+const HORIZONTAL = option('HORIZONTAL', 'H', '수평');
+const VERTICAL = option('VERTICAL', 'V', '수직');
+const MTEXT = option('MTEXT', 'M', '여러 줄 문자');
+const ANGLE = option('ANGLE', 'A', '각도');
+const ROTATED = option('ROTATED', 'R', '회전됨');
+const SELECT = option('SELECT', 'S', '선택');
+
+/** 원점 둘 또는 객체 끝 */
+function originsOf(input: SequenceInput): [Point, Point] | null {
+	if (input.has('obj')) {
+		const entity = input.get<Entity>('obj');
+		return endsOf(entity, input.pick(input.values.indexOf(entity)));
+	}
+	if (!input.has('p2')) return null;
+	return [input.get<Point>('p1'), input.get<Point>('p2')];
+}
+
+/** 수평 · 수직 고정 — 명령 하나 동안(확정 · Esc 에서 풂) */
+let fixed: Fixed = null;
+
+/** DIMLINEAR · DIMALIGNED 공통 물음 */
+function linearSteps(tool: Tool, aligned: boolean) {
+	const measure = (input: SequenceInput, offset: Point): [Point, Point] | null => {
+		const origins = originsOf(input);
+		if (!origins) return null;
+		return aligned ? origins : projectForLinear(origins[0], origins[1], offset, fixed);
+	};
+	const measured = (input: SequenceInput): string | null => {
+		const origins = originsOf(input);
+		if (!origins) return null;
+		const [a, b] = origins;
+		const wide = Math.abs(b.x - a.x) >= Math.abs(b.y - a.y);
+		const [start, end] = aligned ? origins : projectForLinear(a, b, b, fixed ?? (wide ? 'H' : 'V'));
+		return new MeasurementEntity(getActiveLayerId(), start, end, end).getMeasuredText();
+	};
+	return createSequenceTool({
+		tool,
+		steps: [
+			{
+				kind: 'point',
+				id: 'p1',
+				prompt: {
+					text: '첫 번째 치수보조선 원점 지정 또는',
+					options: [OBJECT],
+					default: { kind: 'option', key: 'OBJECT', label: '객체 선택' },
+				},
+				options: { OBJECT: { mode: 'object', next: 'obj' } },
+			},
+			{
+				kind: 'entity',
+				id: 'obj',
+				when: (input) => input.mode === 'object' && !input.has('obj'),
+				next: 'place',
+				prompt: { text: '치수 기입할 객체 선택' },
+			},
+			{
+				kind: 'point',
+				id: 'p2',
+				when: (input) => !input.has('obj'),
+				prompt: { text: '두 번째 치수보조선 원점 지정' },
+			},
+			{
+				kind: 'text',
+				id: 'txt',
+				when: (input) => input.mode === 'text',
+				next: 'place',
+				defaultValue: '<>',
+				prompt: (input) => {
+					const value = measured(input);
+					return {
+						text: '치수 문자 입력',
+						...(value === null ? {} : { default: { kind: 'enter' as const, label: value } }),
+					};
+				},
+			},
+			{
+				kind: 'point',
+				id: 'place',
+				prompt: {
+					text: '치수선의 위치 지정',
+					options: aligned ? [OPT.TEXT] : [OPT.TEXT, HORIZONTAL, VERTICAL],
+					absent: aligned ? [MTEXT, ANGLE] : [MTEXT, ANGLE, ROTATED],
+				},
+				options: {
+					TEXT: { mode: 'text', next: 'txt' },
+					...(aligned
+						? {}
+						: {
+								HORIZONTAL: {
+									run: () => {
+										fixed = 'H';
+									},
+								},
+								VERTICAL: {
+									run: () => {
+										fixed = 'V';
+									},
+								},
+							}),
+				},
+			},
+		],
+		preview: (input) => {
+			if (input.has('place') || !originsOf(input)) return [];
+			const span = measure(input, input.cursor);
+			if (!span) return [];
+			const ghost = new MeasurementEntity(getActiveLayerId(), span[0], span[1], input.cursor);
+			if (input.has('txt')) ghost.textOverride = input.get<string>('txt');
+			return [ghost];
+		},
+		commit: (input) => {
+			const offset = input.get<Point>('place');
+			const span = measure(input, offset);
+			fixed = null;
+			if (!span) {
+				toast.warn('치수를 넣을 수 없는 객체입니다.');
+				return;
+			}
+			const dimension = makeDimension(
+				span[0],
+				span[1],
+				offset,
+				input.has('txt') ? input.get<string>('txt') : undefined
+			);
+			addEntities([dimension], true);
+			logLine(`치수 문자 = ${dimension.getLabel()}`);
+		},
+		onCancel: () => {
+			fixed = null;
+		},
+	});
+}
+
+export const dimLinearToolStateMachine = linearSteps(Tool.DIMLINEAR, false);
+export const dimAlignedToolStateMachine = linearSteps(Tool.DIMALIGNED, true);
+
+/** 기준선 치수는 같은 시작점에서 재고, 치수선을 한 칸 더 띄운다 */
+function baselineDimension(previous: MeasurementEntity, point: Point): MeasurementEntity {
+	const start = previous.getStartPoint();
+	const offset = previous.getOffsetPoint();
+	const spacing = offset.distanceTo(start)[0] * 0.35 || 10;
+	const direction = new Point(offset.x - start.x, offset.y - start.y);
+	const length = Math.hypot(direction.x, direction.y) || 1;
+	const nextOffset = new Point(
+		offset.x + (direction.x / length) * spacing,
+		offset.y + (direction.y / length) * spacing
+	);
+	return makeDimension(start, point, nextOffset);
+}
+
+const continueDimension = (previous: MeasurementEntity, point: Point): MeasurementEntity =>
+	makeDimension(previous.getEndPoint(), point, previous.getOffsetPoint());
+
+interface ChainContext extends ToolContext {
+	/** 명령 시작 때 직전 치수 · 이 명령이 만든 치수(U 가 뒤에서 뺌) */
+	first: MeasurementEntity | null;
+	made: MeasurementEntity[];
+}
+type ChainCtx = { context: ChainContext; event: StateEvent };
+
+const CHAIN_PROMPT: PromptSpec = {
+	text: '두 번째 치수보조선 원점 지정',
+	options: [OPT.UNDO],
+	absent: [SELECT],
+};
+
+/** DIMCONTINUE · DIMBASELINE — 앞 치수에 이어 원점 되풀이 · U = 이 명령 안 마지막 치수 · 빈 Enter · Esc = 끝 */
+function chainTool(
+	tool: Tool,
+	build: (previous: MeasurementEntity, point: Point) => MeasurementEntity
+) {
+	const base = (context: ChainContext) => context.made[context.made.length - 1] ?? context.first;
+	const hasBase = ({ context }: ChainCtx) => !!base(context);
+	const place = {
+		guard: hasBase,
+		actions: assign(({ context, event }: ChainCtx) => {
+			const previous = base(context) as MeasurementEntity;
+			const point = getPointFromEvent(previous.getEndPoint(), event as PointInputEvent);
+			const dimension = build(previous, point);
+			addEntities([dimension], true);
+			logLine(`치수 문자 = ${dimension.getLabel()}`);
+			setAngleGuideOriginPoint(dimension.getEndPoint());
+			return { made: [...context.made, dimension] };
+		}),
+	};
+	const noBase = {
+		target: END_STATE,
+		actions: () => notice('먼저 치수를 하나 작성하십시오.'),
+	};
+	return createMachine({
+		types: {} as { context: ChainContext; events: StateEvent },
+		context: () => ({ type: tool, first: getLastDimension(), made: [] }),
+		initial: 'PICK',
+		states: {
+			PICK: {
+				meta: { kind: 'point', prompt: CHAIN_PROMPT },
+				entry: ({ context }: ChainCtx) => {
+					setShouldDrawHelpers(true);
+					setAngleGuideOriginPoint(base(context)?.getEndPoint() ?? null);
+				},
+				on: {
+					MOUSE_CLICK: [place, noBase],
+					ABSOLUTE_POINT_INPUT: [place, noBase],
+					RELATIVE_POINT_INPUT: [place, noBase],
+					NUMBER_INPUT: [place, noBase],
+					'OPTION.UNDO': {
+						actions: assign(({ context }: ChainCtx) => {
+							if (!context.made.length) return {};
+							undo();
+							const made = context.made.slice(0, -1);
+							const previous = made[made.length - 1] ?? context.first;
+							if (previous) rememberDimension(previous);
+							setAngleGuideOriginPoint(previous?.getEndPoint() ?? null);
+							return { made };
+						}),
+					},
+					ENTER: END_STATE,
+					ESC: END_STATE,
+				},
+			},
+			[END_STATE]: { type: 'final' },
+			// biome-ignore lint/suspicious/noExplicitAny: 손으로 짠 상태 — 사건마다 assign 꼴이 달라 풀어 둠(sequence-tool 과 같음)
+		} as Record<string, any>,
+	});
+}
+
+export const dimBaselineToolStateMachine = chainTool(Tool.DIMBASELINE, baselineDimension);
+export const dimContinueToolStateMachine = chainTool(Tool.DIMCONTINUE, continueDimension);
 
 export const qDimToolStateMachine = createSequenceTool({
 	tool: Tool.QDIM,
 	helpers: false,
 	steps: [
-		{ kind: 'selection', instructions: '치수를 넣을 객체를 선택한 뒤 ENTER.' },
-		{ kind: 'point', instructions: '치수선 위치를 지정하십시오.' },
+		{ kind: 'selection', prompt: { ...SELECT_OBJECTS, text: '치수 기입할 형상 선택' } },
+		{ kind: 'point', prompt: { text: '치수선의 위치 지정' } },
 	],
 	commit: (input) => {
 		const offset = input.point(1);
@@ -140,8 +347,8 @@ export const dimAutoToolStateMachine = createSequenceTool({
 	tool: Tool.DIM,
 	helpers: false,
 	steps: [
-		{ kind: 'entity', instructions: '치수를 넣을 객체를 선택하십시오.' },
-		{ kind: 'point', instructions: '치수선 위치를 지정하십시오.' },
+		{ kind: 'entity', prompt: { text: '치수 기입할 객체 선택' } },
+		{ kind: 'point', prompt: { text: '치수선의 위치 지정' } },
 	],
 	commit: (input) => {
 		const entity = input.entity(0);
diff --git a/B07_DesignDetail/openwebcad/src/tools/draw/divide-tools.ts b/B07_DesignDetail/openwebcad/src/tools/draw/divide-tools.ts
index 19ddd7c3c..8cd40d337 100644
--- a/B07_DesignDetail/openwebcad/src/tools/draw/divide-tools.ts
+++ b/B07_DesignDetail/openwebcad/src/tools/draw/divide-tools.ts
@@ -1,5 +1,9 @@
-/** 등분(DIVIDE)·길이분할(MEASURE) — 객체를 자르지 않고 점만 놓는다 */
+/**
+ * 등분(DIVIDE)·길이분할(MEASURE) — 객체를 자르지 않고 점만 놓는다.
+ * 오토캐드 물음 차례(337 설계 1-2) · 기본값 없음 · 한 번 뒤 끝 · 블록(B) 없음.
+ */
 import { toast } from 'react-toastify';
+import type { OptionSpec } from '../../commands/prompt';
 import {
 	dividePoints,
 	measurePoints,
@@ -10,12 +14,21 @@ import { Tool } from '../../tools';
 import { pointEntity } from '../factories/entity-factory';
 import { createSequenceTool } from '../factories/sequence-tool';
 
+const BLOCK: OptionSpec = { key: 'BLOCK', kw: 'B', en: 'BLOCK', label: '블록' };
+
 export const divideToolStateMachine = createSequenceTool({
 	tool: Tool.DIVIDE,
 	helpers: false,
 	steps: [
-		{ kind: 'entity', instructions: '등분할 객체를 선택하십시오.' },
-		{ kind: 'number', instructions: '세그먼트 수를 입력하십시오 <4>.', defaultValue: 4 },
+		{ kind: 'entity', prompt: { text: '등분할 객체 선택' } },
+		{
+			kind: 'number',
+			prompt: {
+				text: '세그먼트 수 입력',
+				absent: [BLOCK],
+				number: { int: true, min: 2, max: 32767 },
+			},
+		},
 	],
 	commit: (input) => {
 		const points = dividePoints(sampleEntityPoints(input.entity(0)), input.number(1));
@@ -31,11 +44,19 @@ export const measureLengthToolStateMachine = createSequenceTool({
 	tool: Tool.MEASURE_LENGTH,
 	helpers: false,
 	steps: [
-		{ kind: 'entity', instructions: '길이로 분할할 객체를 선택하십시오.' },
-		{ kind: 'number', instructions: '세그먼트 길이를 입력하십시오 <10>.', defaultValue: 10 },
+		{ kind: 'entity', prompt: { text: '길이 분할 객체 선택' } },
+		{
+			kind: 'number',
+			prompt: { text: '세그먼트의 길이 지정', absent: [BLOCK], number: { positive: true } },
+		},
 	],
 	commit: (input) => {
-		const points = measurePoints(sampleEntityPoints(input.entity(0)), input.number(1));
+		// 누른 자리에 가까운 끝부터 잼(오토캐드)
+		const path = sampleEntityPoints(input.entity(0));
+		const pick = input.pick(0);
+		const nearEnd =
+			path.length > 1 && path[path.length - 1].distanceTo(pick)[0] < path[0].distanceTo(pick)[0];
+		const points = measurePoints(nearEnd ? [...path].reverse() : path, input.number(1));
 		if (!points.length) {
 			toast.warn('지정한 길이로 나눌 수 없습니다.');
 			return;
diff --git a/B07_DesignDetail/openwebcad/src/tools/modify/lengthen-tool.ts b/B07_DesignDetail/openwebcad/src/tools/modify/lengthen-tool.ts
new file mode 100644
index 000000000..1c5290d84
--- /dev/null
+++ b/B07_DesignDetail/openwebcad/src/tools/modify/lengthen-tool.ts
@@ -0,0 +1,212 @@
+/**
+ * LENGTHEN(LEN) — 오토캐드 물음 차례(337 설계 1-2).
+ * 「측정할 객체 선택 또는 [증분(DE)/퍼센트(P)/전체(T)] <전체(T)>:」(누름 = 현재 길이 알림)
+ * → 방식 값 → 「변경할 객체 선택 또는 [명령 취소(U)]:」 되풀이(빈 Enter · Esc = 끝 · 바꾼 것 남음).
+ * 손으로 짠 도구(설계 2-14) — 바꾸고 같은 물음에 머무는 되풀이 · U 는 이 명령 안 바꿈만 되돌림.
+ */
+import { Arc, type Point, Segment } from '@flatten-js/core';
+import { assign, createMachine } from 'xstate';
+import { type OptionSpec, type PromptSpec, recall, remember } from '../../commands/prompt';
+import { ArcEntity } from '../../entities/ArcEntity';
+import type { Entity } from '../../entities/Entity';
+import { findClosestEntity } from '../../helpers/find-closest-entity';
+import { polylineLength, sampleEntityPoints } from '../../helpers/geometry/sample-entity';
+import { pickRadius } from '../../helpers/pick-radius';
+import { queryEntitiesNearPoint } from '../../helpers/spatial-index';
+import { notice } from '../../inputController/prompt-input';
+import { addEntities, deleteEntities, getLayerById, setShouldDrawHelpers, undo } from '../../state';
+import { Tool } from '../../tools';
+import {
+	END_STATE,
+	type MouseClickEvent,
+	type NumberInputEvent,
+	type StateEvent,
+	type ToolContext,
+} from '../tool.types';
+import { copyStyle, lengthenLine } from './modify.helpers';
+
+type Mode = 'DELTA' | 'PERCENT' | 'TOTAL';
+
+const MODE_OPTIONS: Record<Mode, OptionSpec> = {
+	DELTA: { key: 'DELTA', kw: 'DE', en: 'DELTA', label: '증분' },
+	PERCENT: { key: 'PERCENT', kw: 'P', en: 'PERCENT', label: '퍼센트' },
+	TOTAL: { key: 'TOTAL', kw: 'T', en: 'TOTAL', label: '전체' },
+};
+const DYNAMIC: OptionSpec = { key: 'DYNAMIC', kw: 'DY', en: 'DYNAMIC', label: '동적' };
+const ANGLE: OptionSpec = { key: 'ANGLE', kw: 'A', en: 'ANGLE', label: '각도' };
+const UNDO: OptionSpec = { key: 'UNDO', kw: 'U', en: 'UNDO', label: '명령 취소' };
+
+/** 방식별 값 물음 — 기억 열쇠 LENGTHEN.DE · .P · .T */
+const VALUE_PROMPTS: Record<Mode, PromptSpec> = {
+	DELTA: {
+		text: '증분 길이 입력',
+		absent: [ANGLE],
+		default: { kind: 'value', remember: 'LENGTHEN.DE', initial: 0 },
+	},
+	PERCENT: {
+		text: '퍼센트 길이 입력',
+		number: { positive: true },
+		default: { kind: 'value', remember: 'LENGTHEN.P', initial: 100 },
+	},
+	TOTAL: {
+		text: '전체 길이 지정',
+		absent: [ANGLE],
+		number: { positive: true },
+		default: { kind: 'value', remember: 'LENGTHEN.T', initial: 1 },
+	},
+};
+const REMEMBER_KEY: Record<Mode, string> = {
+	DELTA: 'LENGTHEN.DE',
+	PERCENT: 'LENGTHEN.P',
+	TOTAL: 'LENGTHEN.T',
+};
+
+const lastMode = (): Mode => recall<Mode>('LENGTHEN.MODE') ?? 'TOTAL';
+
+const MEASURE_PROMPT = (): PromptSpec => {
+	const mode = MODE_OPTIONS[lastMode()];
+	return {
+		text: '측정할 객체 선택',
+		options: [MODE_OPTIONS.DELTA, MODE_OPTIONS.PERCENT, MODE_OPTIONS.TOTAL],
+		absent: [DYNAMIC],
+		default: { kind: 'option', key: mode.key, label: `${mode.label}(${mode.kw})` },
+	};
+};
+const TARGET_PROMPT: PromptSpec = { text: '변경할 객체 선택', options: [UNDO] };
+
+/** 누른 자리 가장 가까운 객체(잠금 층 뺌 · 반경 안만) */
+function pickAt(point: Point): Entity | null {
+	const radius = pickRadius();
+	const candidates = queryEntitiesNearPoint(point.x, point.y, radius).filter(
+		(entity) => !getLayerById(entity.layerId)?.isLocked
+	);
+	const { distance, entity } = findClosestEntity(point, candidates);
+	return entity && distance <= radius ? entity : null;
+}
+
+export function entityLength(entity: Entity): number {
+	const shape = entity.getShape();
+	if (shape instanceof Segment || shape instanceof Arc) return shape.length;
+	return polylineLength(sampleEntityPoints(entity));
+}
+
+/** 호 — 누른 쪽 끝을 호 길이 delta 만큼(사이각 0 ~ 360° 안) */
+function lengthenArc(entity: Entity, arc: Arc, delta: number, near: Point): Entity | null {
+	const radius = Number(arc.r);
+	const turn = delta / radius;
+	const sweep = arc.sweep + turn;
+	if (sweep <= 0 || sweep >= 2 * Math.PI) return null;
+	const atStart = arc.start.distanceTo(near)[0] < arc.end.distanceTo(near)[0];
+	const sign = arc.counterClockwise ? 1 : -1;
+	const startAngle = atStart ? arc.startAngle - sign * turn : arc.startAngle;
+	const endAngle = atStart ? arc.endAngle : arc.endAngle + sign * turn;
+	return copyStyle(
+		entity,
+		new ArcEntity(entity.layerId, arc.center, radius, startAngle, endAngle, arc.counterClockwise)
+	);
+}
+
+/** 방식 · 값 → 바뀐 객체(못 바꾸면 null) */
+function changed(entity: Entity, mode: Mode, value: number, near: Point): Entity | null {
+	const shape = entity.getShape();
+	if (!(shape instanceof Segment) && !(shape instanceof Arc)) return null;
+	const length = shape.length;
+	const target =
+		mode === 'DELTA' ? length + value : mode === 'PERCENT' ? (length * value) / 100 : value;
+	if (target <= 1e-9) return null;
+	const delta = target - length;
+	return shape instanceof Arc
+		? lengthenArc(entity, shape, delta, near)
+		: lengthenLine(entity, delta, near);
+}
+
+interface LengthenContext extends ToolContext {
+	mode: Mode;
+	value: number;
+	/** 이 명령 안에서 바꾼 횟수 — U 는 이만큼만 되돌림 */
+	changes: number;
+}
+
+type Ctx = { context: LengthenContext; event: StateEvent };
+
+const toValue = (mode: Mode) => ({
+	target: `VALUE_${mode}`,
+	actions: assign({ mode: () => mode }),
+});
+
+const clickPoint = (event: StateEvent) => (event as MouseClickEvent).worldMouseLocation;
+
+export const lengthenToolStateMachine = createMachine({
+	types: {} as { context: LengthenContext; events: StateEvent },
+	context: { type: Tool.LENGTHEN, mode: 'TOTAL', value: 1, changes: 0 },
+	initial: 'MEASURE',
+	states: {
+		MEASURE: {
+			meta: { kind: 'entity', prompt: MEASURE_PROMPT },
+			entry: () => setShouldDrawHelpers(false),
+			on: {
+				MOUSE_CLICK: {
+					actions: ({ event }: Ctx) => {
+						const entity = pickAt(clickPoint(event));
+						if (entity) notice(`현재 길이: ${entityLength(entity).toFixed(4)}`);
+					},
+				},
+				'OPTION.DELTA': toValue('DELTA'),
+				'OPTION.PERCENT': toValue('PERCENT'),
+				'OPTION.TOTAL': toValue('TOTAL'),
+				ESC: END_STATE,
+			},
+		},
+		...Object.fromEntries(
+			(Object.keys(VALUE_PROMPTS) as Mode[]).map((mode) => [
+				`VALUE_${mode}`,
+				{
+					meta: { kind: 'number', prompt: VALUE_PROMPTS[mode] },
+					on: {
+						NUMBER_INPUT: {
+							target: 'TARGET',
+							actions: assign(({ event }: Ctx) => {
+								const value = (event as NumberInputEvent).value;
+								remember('LENGTHEN.MODE', mode);
+								remember(REMEMBER_KEY[mode], value);
+								return { value };
+							}),
+						},
+						ESC: END_STATE,
+					},
+				},
+			])
+		),
+		TARGET: {
+			meta: { kind: 'entity', prompt: TARGET_PROMPT },
+			on: {
+				MOUSE_CLICK: {
+					actions: assign(({ context, event }: Ctx) => {
+						const near = clickPoint(event);
+						const entity = pickAt(near);
+						if (!entity) return {};
+						const next = changed(entity, context.mode, context.value, near);
+						if (!next) {
+							notice('이 객체는 길이를 바꿀 수 없음.');
+							return {};
+						}
+						deleteEntities([entity], false);
+						addEntities([next], true);
+						return { changes: context.changes + 1 };
+					}),
+				},
+				'OPTION.UNDO': {
+					actions: assign(({ context }: Ctx) => {
+						if (!context.changes) return {};
+						undo();
+						return { changes: context.changes - 1 };
+					}),
+				},
+				ENTER: END_STATE,
+				ESC: END_STATE,
+			},
+		},
+		[END_STATE]: { type: 'final' },
+		// biome-ignore lint/suspicious/noExplicitAny: 손으로 짠 상태 — 사건마다 assign 꼴이 달라 풀어 둠(sequence-tool 과 같음)
+	} as Record<string, any>,
+});
diff --git a/B07_DesignDetail/openwebcad/src/tools/utility/inquiry-tools.ts b/B07_DesignDetail/openwebcad/src/tools/utility/inquiry-tools.ts
index 84706b436..6babd6ab6 100644
--- a/B07_DesignDetail/openwebcad/src/tools/utility/inquiry-tools.ts
+++ b/B07_DesignDetail/openwebcad/src/tools/utility/inquiry-tools.ts
@@ -1,6 +1,8 @@
 /** 조회 명령 — 거리·반지름·각도·면적·좌표·리스트·계산기 (조사표 3절 유틸리티) */
 import { Circle, type Point } from '@flatten-js/core';
 import { toast } from 'react-toastify';
+import type { OptionSpec } from '../../commands/prompt';
+import { logLine } from '../../commands/run-command';
 import { EntityName } from '../../entities/Entity';
 import { entitiesToLoop } from '../../helpers/geometry/entity-loop';
 import { polylineLength, sampleEntityPoints } from '../../helpers/geometry/sample-entity';
@@ -22,21 +24,30 @@ export function polygonArea(points: Point[]): number {
 	return Math.abs(total) / 2;
 }
 
+const MULTIPLE_POINTS: OptionSpec = { key: 'MULTIPLE', kw: 'M', en: 'MULTIPLE', label: '다중 점' };
+
+/** DIST 결과 두 줄(오토캐드 꼴 · 길이 소수 넷 · 각도 AUPREC 0) */
+export function distanceReport(first: Point, second: Point): [string, string] {
+	const dx = second.x - first.x;
+	const dy = second.y - first.y;
+	const angle = (toDegrees(Math.atan2(dy, dx)) + 360) % 360;
+	return [
+		`거리 = ${format(Math.hypot(dx, dy), 4)}, XY 평면에서의 각도 = ${Math.round(angle) % 360}, XY 평면으로부터의 각도 = 0`,
+		`X 증분 = ${format(dx, 4)}, Y 증분 = ${format(dy, 4)}, Z 증분 = ${format(0, 4)}`,
+	];
+}
+
 export const distanceToolStateMachine = createSequenceTool({
 	tool: Tool.DIST,
 	steps: [
-		{ kind: 'point', instructions: '거리를 잴 첫 점을 지정하십시오.' },
-		{ kind: 'point', instructions: '두 번째 점을 지정하십시오.' },
+		{ kind: 'point', prompt: { text: '첫 번째 점 지정' } },
+		{ kind: 'point', prompt: { text: '두 번째 점 지정', absent: [MULTIPLE_POINTS] } },
 	],
 	commit: (input) => {
 		const [first, second] = input.points();
-		const distance = first.distanceTo(second)[0];
-		const angle = toDegrees(Math.atan2(second.y - first.y, second.x - first.x));
-		toast.info(
-			`거리 ${format(distance)} · X 증분 ${format(second.x - first.x)} · Y 증분 ${format(
-				second.y - first.y
-			)} · 각도 ${format(angle, 2)}°`
-		);
+		const lines = distanceReport(first, second);
+		for (const line of lines) logLine(line);
+		toast.info(lines.join('\n'));
 	},
 });
 
diff --git a/resources/tester/cad/measure-acad.test.ts b/resources/tester/cad/measure-acad.test.ts
new file mode 100644
index 000000000..4cc62edf8
--- /dev/null
+++ b/resources/tester/cad/measure-acad.test.ts
@@ -0,0 +1,363 @@
+/**
+ * 337 다-2 — 늘이기 · 재기 · 치수 오토캐드 조작(설계 1-2 · 6-3 다 줄 중 LENGTHEN · DIVIDE · MEASURE · DIST · DIM).
+ * 물음 글 · 옵션 글자 · 기본값 · 빈 Enter · Esc · 끝난 뒤를 키 · 마우스로 넣어 숫자로 판정.
+ * 객체는 앱 코드(fromJson)로만 만듦 — 시험 쪽 flatten-js 는 다른 사본.
+ * 실행: cd B07_DesignDetail/openwebcad && npx vitest run --dir ../../resources/tester/cad measure-acad
+ */
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("react-toastify", () => ({
+  toast: Object.assign(vi.fn(), { error: vi.fn(), info: vi.fn(), warn: vi.fn(), success: vi.fn() }),
+}));
+
+import { getCommandHistory } from "../../../B07_DesignDetail/openwebcad/src/commands/run-command";
+import { getDimDecimals } from "../../../B07_DesignDetail/openwebcad/src/commands/dim-settings";
+import { ArcEntity } from "../../../B07_DesignDetail/openwebcad/src/entities/ArcEntity";
+import { CircleEntity } from "../../../B07_DesignDetail/openwebcad/src/entities/CircleEntity";
+import { EntityName, type Entity } from "../../../B07_DesignDetail/openwebcad/src/entities/Entity";
+import { LineEntity } from "../../../B07_DesignDetail/openwebcad/src/entities/LineEntity";
+import type { MeasurementEntity } from "../../../B07_DesignDetail/openwebcad/src/entities/MeasurementEntity";
+import { getActiveLayerId, setEntities } from "../../../B07_DesignDetail/openwebcad/src/state";
+import { Tool } from "../../../B07_DesignDetail/openwebcad/src/tools";
+import {
+  activeTool,
+  click,
+  entities,
+  initIdle,
+  key,
+  noticeLine,
+  promptLine,
+  type,
+  typeEnter,
+} from "./helpers/cad-drive";
+
+type Xy = { x: number; y: number };
+const enter = () => key("Enter");
+const esc = () => key("Escape");
+const base = () => ({ lineColor: "#fff", lineWidth: 1, layerId: getActiveLayerId() });
+
+async function addLine(x1: number, y1: number, x2: number, y2: number): Promise<Entity> {
+  const line = await LineEntity.fromJson({
+    id: `line-${x1}-${y1}-${x2}-${y2}`,
+    type: EntityName.Line,
+    ...base(),
+    shapeData: { startPoint: { x: x1, y: y1 }, endPoint: { x: x2, y: y2 } },
+  } as never);
+  setEntities([...entities(), line], true); // 그린 것처럼 되돌림 기록에 올림
+  return line;
+}
+
+async function addArc(): Promise<Entity> {
+  // 중심 (0, 0) · 반지름 50 · 0° → 90° 반시계(길이 25π)
+  const arc = await ArcEntity.fromJson({
+    id: "arc",
+    type: EntityName.Arc,
+    ...base(),
+    shapeData: { center: { x: 0, y: 0 }, radius: 50, startAngle: 0, endAngle: Math.PI / 2, counterClockwise: true },
+  } as never);
+  setEntities([...entities(), arc], true); // 그린 것처럼 되돌림 기록에 올림
+  return arc;
+}
+
+async function addCircle(): Promise<Entity> {
+  const circle = await CircleEntity.fromJson({
+    id: "circle",
+    type: EntityName.Circle,
+    ...base(),
+    shapeData: { center: { x: 300, y: 300 }, radius: 10 },
+  } as never);
+  setEntities([...entities(), circle], true); // 그린 것처럼 되돌림 기록에 올림
+  return circle;
+}
+
+const ends = (entity: Entity): [Xy, Xy] => {
+  const shape = entity.getShape() as unknown as { start: Xy; end: Xy };
+  return [
+    { x: shape.start.x, y: shape.start.y },
+    { x: shape.end.x, y: shape.end.y },
+  ];
+};
+const onlyLine = () => entities("Line")[0];
+const lineLength = () => {
+  const [a, b] = ends(onlyLine());
+  return Math.hypot(b.x - a.x, b.y - a.y);
+};
+const points = () =>
+  entities("Point")
+    .map((entity) => {
+      const p = entity.getShape() as unknown as Xy;
+      return { x: Math.round(p.x * 1000) / 1000, y: Math.round(p.y * 1000) / 1000 };
+    })
+    .sort((a, b) => a.x - b.x);
+const dims = () => entities("Measurement") as MeasurementEntity[];
+const lastLog = (n = 1) => getCommandHistory().slice(-n);
+/** 선형 치수 글(반올림 · 끝 0 뗌) · 반지름 치수 글(소수 자릿수 그대로) */
+const fmt = (value: number) => String(Number(value.toFixed(getDimDecimals())));
+const fixed = (value: number) => value.toFixed(getDimDecimals());
+
+beforeEach(() => {
+  initIdle();
+});
+
+describe("LENGTHEN(LEN)", () => {
+  const FIRST = "측정할 객체 선택 또는 [증분(DE)/퍼센트(P)/전체(T)]";
+
+  it("누름 = 현재 길이 · DE → 되풀이 · U = 이 명령 안 바꿈만 · 빈 Enter = 끝", async () => {
+    await addLine(0, 0, 100, 0);
+    typeEnter("len");
+    expect(activeTool()).toBe(Tool.LENGTHEN);
+    expect(promptLine()).toBe(`${FIRST} <전체(T)>:`);
+    click(50, 0);
+    expect(noticeLine()).toBe("현재 길이: 100.0000");
+    expect(promptLine()).toBe(`${FIRST} <전체(T)>:`);
+    type("d"); // DE 보다 짧음 — 안 맞음
+    expect(noticeLine()).toBe("*선택이 잘못됨*");
+    type("dy");
+    expect(noticeLine()).toBe("「동적(DY)」 옵션은 이 CAD 에 없음.");
+    type("de");
+    expect(promptLine()).toBe("증분 길이 입력 <0.0000>:");
+    type("10");
+    expect(promptLine()).toBe("변경할 객체 선택 또는 [명령 취소(U)]:");
+    click(95, 0); // 끝 쪽
+    expect(ends(onlyLine())[1].x).toBeCloseTo(110);
+    click(105, 0);
+    expect(ends(onlyLine())[1].x).toBeCloseTo(120);
+    expect(activeTool()).toBe(Tool.LENGTHEN); // 되풀이
+    type("u");
+    expect(ends(onlyLine())[1].x).toBeCloseTo(110);
+    type("u");
+    type("u"); // 이 명령 안 바꿈 다 되돌린 뒤 = 아무 일 없음(앞 객체 지키기)
+    expect(entities("Line")).toHaveLength(1);
+    expect(lineLength()).toBeCloseTo(100);
+    click(5, 0); // 시작 쪽
+    expect(ends(onlyLine())[0].x).toBeCloseTo(-10);
+    enter();
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+
+  it("마지막 방식 · 값 기억 — 첫 물음 빈 Enter = 그 방식 · 값 빈 Enter = 앞 값", async () => {
+    await addLine(0, 0, 100, 0);
+    typeEnter("len");
+    type("de");
+    type("10");
+    esc();
+    typeEnter("len");
+    expect(promptLine()).toBe(`${FIRST} <증분(DE)>:`);
+    enter();
+    expect(promptLine()).toBe("증분 길이 입력 <10.0000>:");
+    enter();
+    click(95, 0);
+    expect(lineLength()).toBeCloseTo(110);
+    esc(); // Esc = 끝 · 바꾼 것 남음
+    expect(activeTool()).toBe(Tool.SELECT);
+    expect(lineLength()).toBeCloseTo(110);
+  });
+
+  it("P · T — 퍼센트 · 전체 · 양수 거절 · 호", async () => {
+    await addLine(0, 0, 100, 0);
+    typeEnter("len");
+    type("p");
+    expect(promptLine()).toBe("퍼센트 길이 입력 <100.0000>:");
+    type("-5");
+    expect(noticeLine()).toBe("값은 양수이고 0이 아니어야 함.");
+    type("50");
+    click(90, 0);
+    expect(ends(onlyLine())).toEqual([
+      { x: 0, y: 0 },
+      { x: 50, y: 0 },
+    ]);
+    esc();
+    typeEnter("len");
+    expect(promptLine()).toBe(`${FIRST} <퍼센트(P)>:`);
+    type("t");
+    expect(promptLine()).toBe("전체 길이 지정 <1.0000>:");
+    type("a");
+    expect(noticeLine()).toBe("「각도(A)」 옵션은 이 CAD 에 없음.");
+    type("200");
+    click(45, 0);
+    expect(lineLength()).toBeCloseTo(200);
+    await addArc();
+    click(0, 50); // 호 끝(90°) 쪽
+    const arc = entities("Arc")[0].getShape() as unknown as { length: number; endAngle: number };
+    expect(arc.length).toBeCloseTo(200);
+    expect(arc.endAngle).toBeCloseTo(4); // 200 / 50 rad
+    esc();
+  });
+});
+
+describe("DIVIDE(DIV) · MEASURE(ME)", () => {
+  it("DIVIDE — 기본 없음 · 정수 2~32767 · 블록 없음 · 한 번 뒤 끝", async () => {
+    await addLine(0, 0, 100, 0);
+    typeEnter("div");
+    expect(promptLine()).toBe("등분할 객체 선택:");
+    click(50, 0);
+    expect(promptLine()).toBe("세그먼트 수 입력:");
+    enter(); // 기본 없음 — 그대로
+    expect(promptLine()).toBe("세그먼트 수 입력:");
+    type("2.5");
+    expect(noticeLine()).toBe("정수 값을 요구함.");
+    type("1");
+    expect(noticeLine()).toBe("2에서 32767 사이의 정수를 요구함.");
+    type("b");
+    expect(noticeLine()).toBe("「블록(B)」 옵션은 이 CAD 에 없음.");
+    type("4");
+    expect(points()).toEqual([
+      { x: 25, y: 0 },
+      { x: 50, y: 0 },
+      { x: 75, y: 0 },
+    ]);
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+
+  it("MEASURE — 누른 자리 가까운 끝부터 · 양수", async () => {
+    await addLine(0, 0, 100, 0);
+    typeEnter("me");
+    expect(promptLine()).toBe("길이 분할 객체 선택:");
+    click(90, 0); // 끝 쪽
+    expect(promptLine()).toBe("세그먼트의 길이 지정:");
+    type("0");
+    expect(noticeLine()).toBe("값은 양수이고 0이 아니어야 함.");
+    type("30");
+    expect(points().map((p) => p.x)).toEqual([10, 40, 70]);
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+});
+
+describe("DIST(DI)", () => {
+  it("두 점 → 오토캐드 꼴 두 줄 기록 · 한 번 뒤 끝 · 다중 점 없음", () => {
+    typeEnter("di");
+    expect(promptLine()).toBe("첫 번째 점 지정:");
+    type("0,0");
+    expect(promptLine()).toBe("두 번째 점 지정:");
+    type("m");
+    expect(noticeLine()).toBe("「다중 점(M)」 옵션은 이 CAD 에 없음.");
+    type("30,40");
+    expect(lastLog(2)).toEqual([
+      "거리 = 50.0000, XY 평면에서의 각도 = 53, XY 평면으로부터의 각도 = 0",
+      "X 증분 = 30.0000, Y 증분 = 40.0000, Z 증분 = 0.0000",
+    ]);
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+});
+
+describe("DIMLINEAR(DLI) · DIMALIGNED(DAL)", () => {
+  const PLACE = "치수선의 위치 지정 또는 [문자(T)/수평(H)/수직(V)]:";
+
+  it("원점 둘 → V 고정 → T 문자(`<>` = 잰 값) → 놓음 · 기록 · 한 번 뒤 끝", () => {
+    typeEnter("dli");
+    expect(promptLine()).toBe("첫 번째 치수보조선 원점 지정 또는 <객체 선택>:");
+    type("0,0");
+    expect(promptLine()).toBe("두 번째 치수보조선 원점 지정:");
+    type("100,30");
+    expect(promptLine()).toBe(PLACE);
+    type("m");
+    expect(noticeLine()).toBe("「여러 줄 문자(M)」 옵션은 이 CAD 에 없음.");
+    type("v");
+    expect(promptLine()).toBe(PLACE);
+    type("t");
+    expect(promptLine()).toBe(`치수 문자 입력 <${fmt(30)}>:`);
+    typeEnter("L=<>");
+    expect(promptLine()).toBe(PLACE);
+    type("120,15");
+    const [dim] = dims();
+    expect(dim.getLabel()).toBe(`L=${fmt(30)}`);
+    expect(dim.getEndPoint().x).toBeCloseTo(0); // 수직 — 끝점 x 를 시작점에 맞춤
+    expect(dim.getEndPoint().y).toBeCloseTo(30);
+    expect(lastLog()).toEqual([`치수 문자 = L=${fmt(30)}`]);
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+
+  it("첫 물음 빈 Enter = 객체 선택 → H 고정 · T 빈 Enter = 잰 값 그대로", async () => {
+    await addLine(0, 0, 80, 60);
+    typeEnter("dli");
+    enter();
+    expect(promptLine()).toBe("치수 기입할 객체 선택:");
+    click(40, 30);
+    expect(promptLine()).toBe(PLACE);
+    type("h");
+    type("t");
+    expect(promptLine()).toBe(`치수 문자 입력 <${fmt(80)}>:`);
+    enter();
+    type("40,-20"); // 수평 고정이라 옆에 놓아도 가로
+    const [dim] = dims();
+    expect(dim.getLabel()).toBe(fmt(80));
+    expect(dim.textOverride).toBeUndefined();
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+
+  it("Esc = 끝 · 안 만듦 · DIMALIGNED 는 [문자(T)] 만", () => {
+    typeEnter("dli");
+    type("0,0");
+    type("10,0");
+    esc();
+    expect(activeTool()).toBe(Tool.SELECT);
+    expect(dims()).toHaveLength(0);
+    typeEnter("dal");
+    type("0,0");
+    type("30,40");
+    expect(promptLine()).toBe("치수선의 위치 지정 또는 [문자(T)]:");
+    type("h");
+    expect(noticeLine()).toBe("점 또는 옵션 키워드를 요구함.");
+    type("0,50");
+    expect(dims()[0].getLabel()).toBe(fmt(50));
+  });
+});
+
+describe("DIMCONTINUE(DCO) · DIMBASELINE(DBA)", () => {
+  const CHAIN = "두 번째 치수보조선 원점 지정 또는 [명령 취소(U)]:";
+
+  it("되풀이 · U = 이 명령 안 마지막 치수 · 빈 Enter = 끝", () => {
+    typeEnter("dli");
+    type("0,0");
+    type("100,0");
+    type("50,20");
+    expect(dims()).toHaveLength(1);
+    typeEnter("dco");
+    expect(promptLine()).toBe(CHAIN);
+    type("s");
+    expect(noticeLine()).toBe("「선택(S)」 옵션은 이 CAD 에 없음.");
+    type("150,0");
+    type("200,0");
+    expect(dims()).toHaveLength(3);
+    expect(dims()[2].getStartPoint().x).toBeCloseTo(150); // 앞 치수 끝에서 이어짐
+    expect(promptLine()).toBe(CHAIN);
+    type("u");
+    expect(dims()).toHaveLength(2);
+    type("u");
+    type("u"); // 이 명령 밖 치수는 안 지움
+    expect(dims()).toHaveLength(1);
+    type("130,0");
+    expect(dims()[1].getStartPoint().x).toBeCloseTo(100); // U 뒤 앞 치수에서 다시 이음
+    enter();
+    expect(activeTool()).toBe(Tool.SELECT);
+    typeEnter("dba");
+    expect(promptLine()).toBe(CHAIN);
+    type("180,0");
+    expect(dims()).toHaveLength(3);
+    expect(dims()[2].getStartPoint().x).toBeCloseTo(100); // 기준선 = 앞 치수 시작점
+    esc();
+    expect(activeTool()).toBe(Tool.SELECT);
+  });
+});
+
+describe("DIMRADIUS(DRA) · DIMDIAMETER(DDI)", () => {
+  it("호 또는 원 → [문자(T)] → 위치 · 기록 · 한 번 뒤 끝", async () => {
+    await addCircle();
+    typeEnter("dra");
+    expect(promptLine()).toBe("호 또는 원 선택:");
+    click(310, 300);
+    expect(promptLine()).toBe("치수선의 위치 지정 또는 [문자(T)]:");
+    type("a");
+    expect(noticeLine()).toBe("「각도(A)」 옵션은 이 CAD 에 없음.");
+    type("t");
+    expect(promptLine()).toBe(`치수 문자 입력 <R${fixed(10)}>:`);
+    typeEnter("<> BASE");
+    type("330,300");
+    expect(lastLog()).toEqual([`치수 문자 = R${fixed(10)} BASE`]);
+    expect(activeTool()).toBe(Tool.SELECT);
+    typeEnter("ddi");
+    click(310, 300);
+    type("330,300");
+    expect(lastLog()).toEqual([`치수 문자 = Ø${fixed(20)}`]);
+  });
+});