the diameter of a circular path is 56 m a 2 m Wide Road runs outside around it find the cost of cementing the road at rupees 10 per square M take Pi is equal to 3.14
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inner side of circle
radii=56/2=28
area= πr^2=22/7×28×28
=2464m^2
circular path along with road
radii=28+2=30(since width of road is 2m.)
area =22/7×30×30=2828.6m^2
total area of road=
2828.6-2464=364.57m^2
total coast for cementing road
364.6×10= repees36456
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