Question

Sarah is filling a glass sphere with decorative sand. The radius of the sphere is 2 inches. Which is closest to the minimum amount of sand Sarah needs to completely fill the glass sphere?

Answer 1

If she's filling up a sphere with sand, it means that we need to know what the volume of the sphere is. The formula for the volume of a sphere is:

(4π)*((r^3)/3))

We know that the radius is 2, so we have:

(4π)*((2^3)/3))

Now just simplify it.