Sphere (C)

If a sphere has radius R then its volume is

$$\frac{4}{3}\pi R^3.$$

Exercises

1.

What is the volume of a sphere whose radius is 3 meters?

2.

What is the radius of a sphere whose volume is one liter?

3.

If the radius of a sphere is tripled, what is the effect on the volume?

4.

If the surface area of a sphere is doubled, what is the effect on the volume?

5.

If the volume of a sphere is halved, what is the effect on the radius?

6.

If I reduce the volume of a sphere to one third of its current volume, what is the effect on the surface area?

7.

A sphere is circumsribed about a cube of volume 1 cubic meter. What is the volume of the sphere?