Question

A Gardener wants to fence a circular garden of diameter 21 m. Find the length
of the rope,if he makes two round of fence.Also,find the cost of the rope,if it costs rs.4 per metre.

Answer 1

Diameter =21m

r=21/2m

cir=

$2\pi \: r$

=2×22/7×21/2=66m

And the length of the rope is

=2×66=132m

Cost of rope =132×4=528$.

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Answer 2

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