Question

Calculate the radius of a circle whose area is 616

Answer 1

area of a circle= pie r^2

pie=22/7

let the radius be = x

A/Q

22/7 × x × x = 616

= x^2 = 616×7/22

x^2=196

Answer 2

We know that,

πrsq. =616

22/7×rsq=616

rsq=616×7/22

rsq. =4312/22

rsq. =196

r=√196

r=14 ans.

Where r=radius=14

Hope, it will help you. Thankyou