Notes:

There are four values that define the sphere. Radius, volume, surface area and circumference. Knowing any one of these variables you can calculate the other three. The available calculations are:

• Given the radius calculate the volume, surface area and circumference
• Given the volume calculate the radius, surface area and circumference
• Given the surface area calculate the radius, volume and circumference or
• Given the circumference calculate the radius, volume and surface area