Question

if the circumference of a circular sheet 154 m ,find its radius. also find the area of the sheet. (pie =22/7)

Answer 1

2*22/7*r=154
r=154*7/2*22
r=98

Answer 2

circumference = 154
2πr =154
r = 154 * 7/22 *1/2
r = 7*7/2
r = 49/2
r = 24.5 m
area = πr^2
= 22/7 * 24.5 *24.5
= 22*3.5 *24.5
= 77*24.5
= 1886.5m^2