Question

What is the radius of a sphere with a surface area of 144πcm2?

Answer 1

Surface Area = 4πr²

144(π)cm² = 4(π)r² Divide by π on both sides

144cm² = 4r² Divide by 4 on both sides

36 = r² Find the square root of both sides

√36 = √r²

6 = r

Answer 2

I believe the radius would be 3.39

Hope this helps! Good luck! :)