E.10
축척과 둘레·넓이의 변화
축척(닮음비)이 k이면 길이와 둘레는 k배, 넓이는 k²배
난이도
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문제 수
Perimeter & Area in Scale Drawings
Skill E.10 · Ratios & proportions · ★★☆ Medium
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Answer each question.
Example
Think: Both the length and the width are 3 times as long, so the area is times as large.
- 1A trapezoid has a area of ft². A scale drawing of it uses a scale factor of . What is the area of the drawing?
- 2A triangle has a area of m². A scale drawing of it uses a scale factor of . What is the area of the drawing?
- 3A triangle has a area of m². A scale drawing of it uses a scale factor of . What is the area of the drawing?
- 4A trapezoid has a area of cm². A scale drawing of it uses a scale factor of . What is the area of the drawing?
Answer Key
E.10 Perimeter & Area in Scale Drawings · ★★☆ Medium
- 1 ft²
- 2 m²
- 3 m²
- 4 cm²