Question

Find the diameter of a circle whose area is 616 square meter

Answer 1

Answer:

Let r be radius of given circle.

Given, area=616 cm^2

⇒πr

2

=616

⇒r

2

=616×

22

7

⇒r

2

=196

⇒r=14 cm

Answer 2

πr² = 616

22/7 * r² = 616

r² = 28*7

r = 14 m

diameter = 28m