Question

2. A path 1 m wide is built inside a square park of side 30 m along its sides. Find the area
of the path. Calculate the cost of constructing the path at the rate of 70 per m2 give me photo​

Answer 1

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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