Answered

The surface area of a sphere is 314cm2. Fine the radius of a sphere.

Sagot :

Jers15id
Formula for the surface area of the sphere:4πr²

V=4πr²
V=314

Substitute
314=4πr²
Divide both sides by 4π
r²=24.99
r=5

The radius is 5 cm. Hope this helps =)