Question

101. The area of circle is 2464 square meters. What will its circumference be?

Answer 1

Cias,
******
area =¥r^2 (pi).
= 22/7 × r^2
2464 = 22/7 × r^2
r = 28.
circumference = 2¥r
= 2×22/7×28
= 176.

Answer 2

The area of circle = πr^2
=>
πr^2 = 2464
22/7× r^2 = 2464
r^2 = (2464×7)/22
r^2 = 784
r = 28
now circumference = 2πr
circumference = 2×22/7×28
= 2×22×4
=176 Ans

hope it's helpful ✌