find the cost to put a fence round a circular field at rupee 5 per metre the diameter of circular field is 70 cm
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the diameter of the circular field is 70 cm
radius of the circular field is 70/2 cm=35 cm
perimeter of the field is 2π.radius
=2.22.35/7 cm=2.22.5cm=220 cm=2.2m
the cost to put a fence round a circular field at Rs 5 per meter is 2.2×5Rs=11 Rs
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