a 3.5m wide road surrounds a circular plot whose circumference is 88m. find the cost of painting the road at rs 80 per m sqr
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Answer:
as per anston the result is as per law of motion
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Answer:
hello frnd!!
here's your answer...
circumference of the park=88m
2πr=88m
2×22/7×r=88m
44/7×r=88m
r=88/1×7/44
r=2×7
r=14cm
therefore radius of the park along with the road=14+3.5
=17.5m
area of the park=πr²
=22/7×14×14
=22×2×14
=44×14
=616m²
area of the park along with the road=πr²
=22/7×17.5×17.5
=6737.5/7
=962.5m²
area of the road=962.5-616
=346.5m²
total cost of paving the road if per metre² costs$60
=346.5×60
=$20790
hope this helps...
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