If the circumference of a circle is 22 cm, find the area of the semicircle.
Answers
Answered by
6
Step-by-step explanation:
Given: 2πr = 22
2 × 22/7 × r = 22
r = 7/2 cm
Area = πr²
= 22/7 × 7/2 × 7/2
= 77/2
= 38.5 cm²
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Answered by
2
Step-by-step explanation:
given :-
circumference = 2×π×r
22 = 2×π×r
r=11/π
area = 1/2 ×π×R^2
= 1/2 × π × 121/π^2
= 121/2π
= 121×3.14 /2
= 189.97 cm^2
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