Question

The circumference of a circular field is 308 m. Find is:
(i) Radius
(ii) Area.

Answer 1

Let r be the radius of the circular field
(i) 2πr = 308

⇒ r = `[308]/ [2π]`

⇒ r = `(308)/(2) xx (7)/(22)`

⇒ r = 49 m

(ii) area = πr² 

            = `22/7 xx ( 49 )^2`

            = 7546 m²