a piece of wire 72 m long bento form a semicircle bounded by its dayamiter. find its radius.
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Answer:
r = 14 m
Explanation:
Answer :-
perimeter of semicircle is πr and it is bounded by diameter so the total perimeter is πr + 2r because d = 2r.
therefore , πr + 2r = r(π + 2)
therefore , r(π + 2) = 72 m
therefore , r = 14 m
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