2) A circular ground of diameter 63m. is to be trilpe
fenced. If the rate of wire is Rs.25 per meter,what
will be the cost of fencing the fround?
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Diameter of circular ground = 63 m
Rate of fencing = Rs. 25 per metres
Number of times ground be fenced = 3
Length of wire in fencing once around the ground
= 2 π (63/2)
= 2 × 22/7 × 63/2
= 22 × 9
= 198 m
Therefore,
- Total required cost = 25 ×(3 × 198)
= Rs. 14850
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