I.4

원기둥의 겉넓이

4분기 (4~6월)

두 밑면(원)과 옆면의 넓이를 더해 원기둥의 겉넓이 구하기 (π ≈ 3.14)

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 Surface Area of Cylinders Skill I.4 \cdot Surface area & volume \cdot ★★☆ Medium \cdot Quarter 4 Name Date Score / 6 Scan for answers Use π \approx 3.14. Include square units. Example r = 2 cm 5 cm Surface area = 87.92 cm² Think: Two circles, 25.12, plus the side, which unrolls into a rectangle 2 \times 3.14 \times 2 by 5 : 25.12 + 62.8 = 87.92 . 1 d = 6 cm 3 cm Find the surface area. 2 r = 7 ft 2 ft Find the surface area. 3 r = 2 m 4 m Find the surface area. 4 d = 6 ft 3 ft Find the surface area. 5 r = 10 m 8 m Find the surface area. 6 r = 1 cm 7 cm Find the surface area. Daniel Math Academy \cdot danielmath.com Worksheet # smwwb2e \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 7 Math Answer Key I.4 Surface Area of Cylinders \cdot ★★☆ Medium 1 113.04 cm² 2 395.64 ft² 3 75.36 m² 4 113.04 ft² 5 1,130.4 m² 6 50.24 cm² Daniel Math Academy \cdot danielmath.com Worksheet # smwwb2e \cdot Answer Key \cdot Page 2 / 2

I. 겉넓이와 부피스킬 7개