The diameter of a circle park 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 the rate of rs. 7 per m, find its total cost.
Ranjit1993
diameter is 140 so radius 70 and after extended 7 mtr it is 77 so you need to find perimeter of larger circular which radius is 77 and the perimeter of small circul which radius is 70 now add both and multiple it by 7 as it is the cost required for fencing per mtr
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