Question

the area of circular lawn is 154 m2, find its circumference​

Answer 1

Answer:

Area of Circular lawn = 154 sq. m

=> πr^2 = 154

=> 22/7 r^2 = 154

=> r^2 = (154 × 7)/22

=> r^2 = 49

=> r = √49

=> r = √7×7

=> r = 7 m

Now,

Circumference = 2 π r

= 2 × 22/7 × 7

= 44 m Ans...