A 1m wide path is built along the boundary of a square park of side 36m . find the area of the path . also find the cost of spraying the insecticide in the remaining portion of the park at the rate of ₹15 per m square
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area of path = area of big square - area of small square
=(38)square - (36)square
=1444-1296
=148 sq m
cost = 148 x 15 = 2220 rs
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