H.2

원의 넓이

π ≈ 3.14를 이용해 원의 넓이 구하기

난이도

보통

난이도

문제 수

예제 포함답안지 포함

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 7 Math Area of Circles Skill H.2 \cdot Circles \cdot ★★☆ Medium Name Date Score / 6 Scan for answers Use π \approx 3.14. Include units in your answers. Example r = 5 m A = 78.5 m² Think: Square the radius first, then multiply by 3.14: 3.14 \times 5^{2} = 3.14 \times 25 = 78.5 . Given the diameter, halve it first. 1 r = 7 cm Find the area. 2 r = 15 cm Find the area. 3 d = 30 mm Find the area. 4 d = 20 cm Find the area. 5 r = 1 in Find the area. 6 d = 6 cm Find the area. Daniel Math Academy \cdot danielmath.com Worksheet # 7g4y2cn \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 7 Math Answer Key H.2 Area of Circles \cdot ★★☆ Medium 1 153.86 cm² 2 706.5 cm² 3 706.5 mm² 4 314 cm² 5 3.14 in² 6 28.26 cm² Daniel Math Academy \cdot danielmath.com Worksheet # 7g4y2cn \cdot Answer Key \cdot Page 2 / 2

H. 원의 둘레와 넓이스킬 4개