Question

The area of circle is 154 cm2 . What is its circumference

Answer 1

22/7*r2=154
r2=154*7/22
r2=49
r=7cm
cercumference=2*22/7*r
=2*22/7*7
=44cm

Answer 2

Answer: 44cm

Step-by-step explanation:

1. Pi *(r)^2 =154cm^2

2. 22/2*r^2 =153

3. 22 *r^2 =1078

4. r^2 =49

5. r = 7

Therefore

C = 2*pi * r

C= 2*22\7*7

C=2*22

C=44cm

Thank you