SOLUTION: a circular park of radius 12m has a road 4m wide running round it. find the cost of metalling the road at the rate of Rs.16 per sq.meter.

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Question 927639: a circular park of radius 12m has a road 4m wide running round it. find the cost of metalling the road at the rate of Rs.16 per sq.meter.
Answer by srinivas.g(540) About Me  (Show Source):
You can put this solution on YOUR website!
radius of the park(r) = 12 m
perimeter of the park = 2*Pi*r
=2*3.14*12
=75.36 m
wide =4 m
area of the road = perimeter x wide
= 75.36 x 4
= 301.44 square meters
cost per square meter = RS 16
Total cost = 301.44 x16
= RS. 4823.04
Result : Cost = RS .4823.04