a park is in the shape of a semicircle with radius 14cm. find the cost of fencing it at the cost of rupee 8 per meter
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perimeter of circle = 2πr
perimeter of semicircle = πr ( 2πr divide by 2 )
radius = 14
= 22 / 7 x 14
= 44 cm²
= 0.44 m²
cost per meter = Rs. 8
= 0.44 x 8
= Rs.3.52
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