A path 1m wide is built inside a square park of side 30m along its side.find the area of the path.calculate the cost of constructing the path at the rate of 70 per m2?
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area of outer park =side ×side
=30×30= 900sq.m
area of inner park = 30-2× 30-2 = 28×28
= 784sq.m
area of path =outer park-inner park
=900sq.m - 784sq.m
= 116sq.m
cost of constructing the path = 116×70
= Rs.8120
=30×30= 900sq.m
area of inner park = 30-2× 30-2 = 28×28
= 784sq.m
area of path =outer park-inner park
=900sq.m - 784sq.m
= 116sq.m
cost of constructing the path = 116×70
= Rs.8120
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