Question

Find the area of a circular field that has a circumference of 396 m. 

Answer 1

Circumference = 396 m 

2 π r = 396 

`2 xx 22/7 xx "r" = 396 "m"`

r = 396 m `xx 7/22 xx 1/2`

r = 63 m

Area = π r²

`= 22/7 xx 63 xx 63`

= 12474 m²

Area of the circular field = 12474 m²