alleryStart learning →A circular park of radius 21 m is fenced at Rs 5 per metre. What is the cost? Use pi = 22/7.
ARs 1,320
BRs 660
CRs 330
DRs 2,772
Answer & Solution
Correct answer: B. Rs 660
The boundary is 2 x 22/7 x 21 = 132 m, so the cost is 132 x 5 = Rs 660.
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