alleryA circle has radius 7 cm. The area of a semicircle is
A38.5 sq cm
B154 sq cm
C49 sq cm
D77 sq cm
Answer & Solution
Correct answer: D. 77 sq cm
1. Full circle area = (22/7) × 49 = 154 sq cm.
2. Semicircle = half of that.
3. Hence 77 sq cm.
_Source: syllabus Mathematics, Ch 11 "Areas Related to Circles", §11.2_
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