the diameter of a circular path is 140 m .around it on the outside ,a path having the width of 7 M is constructed if the path has to be fenced from inside and outside at rupees 7 per metre find its total cost.
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radius of the circular path is 140/2=70
so the circumference is 2πr=140π
with the path it's radius will be 70+8=78
the the circumference is 2π78=156π
so measure of the path will be 26π
so total cost will be 26π★7★2
so the circumference is 2πr=140π
with the path it's radius will be 70+8=78
the the circumference is 2π78=156π
so measure of the path will be 26π
so total cost will be 26π★7★2
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