# Sphere (Volume + Surface)

- Author:
- Julian Rojas, GeoGebra Materials Team

Use this worksheet to practice finding the Volume and Surface Area of a Sphere.
Adjust the radius using the labeled slider. Answer the questions below.
The multi-colored switches can be used to check your work.

1.Find the volume and surface area for 5 different Spheres by randomly choosing different radii.
2. Find the missing dimesion. Round to the nearest unit.
a. Sphere: volume 296 cu in, diameter___
b. Sphere: surface area 179 sq in, radius___
3. Packaging: Tennis balls with a diameter of 2.5 in are sold in cans of three. The can is a cylinder. What is the volume of the space in the not occupied by tennis balls? Assume the balls touch the can on the sides, top, and bottom.