Which is the formula for the volume of a sphere with diameter d?

A. S = 4πd²

B. S = πd²

C. S = πd³

D. S = πd³

The answer for this problem is D because the diameter for the sphere is d, so the radius is 1/2d. Substituting that into the formula of finding a circle with radius x is [tex]/frac4/3 pi * x^3. We get 1/3 * pi*1/2d^3, which equals 1/6*pi*d^3, or D.