Question

a path 1 metre 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 Rs. 70 per metre square

Answer 1

side of square park=30m
width of park= 1m
side of inner park =30-1-1m
=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
therefore cost of construction = ₹70 × 116
=₹ 8120
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