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A path 1 m wide is built inside a square park of side 30 m along its sides. Find the areaof the path. Calculate the cost of constructing the path at the rate of 70 per m2 |
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Answer» side of square park (A) = 30m width of path = 1m side of inner park (a) = 30-1-1 = 28m cost of construction = 70 per m^2 Area of path = Area of square park - area of park inside the path = A^2 - a^2 = 30^2 - 28^2 = 900 - 784 = 116m^2 Cost of construction of path = 70×116 =8120 |
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