Question

A circular park of radius 20 m has a road 5 m wide running all around it. Find the area of the road

Answer 1

area=pi*r^2

area including path= 22/7*(20+5)^2
=22/7*625
=1964.28m^2 (approx.)

area without path= 22/7*20^2
=22/7*400
=1257.14m^2 approx.

area of path= 1964.28-1257.14
=707.14m^2