G.1

Semicircles & Quarter Circles

Q4 · Apr–Jun

Find the area and perimeter of semicircles and quarter circles (π ≈ 3.14).

Level

Medium

Level

Problems

Show exampleInclude answer key

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 8 Math Semicircles & Quarter Circles Skill G.1 \cdot Circles & composite figures \cdot ★★☆ Medium \cdot Quarter 4 Name Date Score / 6 Scan for answers Use π \approx 3.14. Include units. Example 10 cm Find the area. 39.25 cm² Think: Half of a circle with radius 5: 3.14 \times 5^{2} \div 2 = 39.25 . Its perimeter is half the circumference plus the diameter. 1 14 in Find the area. 2 14 cm Find the area. 3 14 in Find the area. 4 6 cm Find the area. 5 12 cm Find the area. 6 14 ft Find the area. Daniel Math Academy \cdot danielmath.com Worksheet # d5bsu47 \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 8 Math Answer Key G.1 Semicircles & Quarter Circles \cdot ★★☆ Medium 1 153.86 in² 2 76.93 cm² 3 76.93 in² 4 14.13 cm² 5 113.04 cm² 6 76.93 ft² Daniel Math Academy \cdot danielmath.com Worksheet # d5bsu47 \cdot Answer Key \cdot Page 2 / 2

G. Circles & composite figures3 skills