Question

The circular park of radius 20 m has a road 5m wide running around it find area of the road

Answer 1

this the answer my friend .......

Answer 2

Answer:

706.5 square m

Step-by-step explanation:

Radius of circular park r = 20 m

We are given that Circular park has road of width 5 m

Refer the attached figure

So, radius of outer circle R = 20+ 5 = 25 m

Area of road = Area of outer circle - Area of inner circle

                     =$\pi R^{2} -\pi r^{2}$

                     =$\pi(25^{2} -20^{2})$  

                     =$\pi(625-400)$  

                     =$3.14(225)$  

                      =$706.5$

Thus the area of road is 706.5 square m .