Question
The area A of a cross section through the center of a sphere is 32in^2. Find the surface area of the sphere.
Answers
mathhelper
area = πr^2 = 32
surface area of a sphere = 4πr^2
= 4(32) = 128 cm^2
surface area of a sphere = 4πr^2
= 4(32) = 128 cm^2