Question

There is a circular path of width 2m along the boundary and inside a circular park of radius 16 cm.Find the cost of paving with bricks at the rate of 24 rs per square metre

Answer 1

Area of the park = 22/7*21*21 = 1386 sq.m

Radius of park including road = 21+7 = 28 m

Area of the park including = 22/7*28*28 = 2464 sq.m

So,Area of the road = Area of the park including road - Area of the park excluding road

= 2464sq.m - 1386sq.m

= 1078 sq.m