Question

The area of a circular lawn is 154m²,find its circumference

Answer 1

area = 154 m^2
π r* r = 154
(22/7) * r * r = 154
r * r = 154*7/22
r * r = 49
r = 7 m
circumference = 2 * π r
2 * (22/7) * 7 = 44m