5. A circular garden of radius 14 m is to be fenced with rope all around it. Find the length of the rope needed to make 5 rounds of fence. Also find the cost of rope, at the rate of rupee 7 per metre. (π = 22/7 ).
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Answer:
p=2πr
p=2*22/7*14
p=88m
5 rounds of fence is 5*88 so
440
cost =440*7
=3080rs
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