CliffsNotes To Go Sweepstakes -- Enter Now to Win an iPod touch Loaded with Cliffs Study Apps

Which would you consider the most influential woman of the last 100 years?

Anne Frank
Mother Teresa
Oprah Winfrey
Princess Diana
Rosa Parks

View Results

Spheres

A sphere is the set of all points in space that are equidistant from a fixed point (the center).That distance is the radius of the sphere. Because a sphere has no bases, its area is referred to as its surface area.

Theorem 99: The surface area, S, of a sphere with radius r is given by the following equation:




Theorem 100: The volume of a sphere, V, with radius r is given by the following equation:




Example 1: Figure 1 represents a sphere with radius r. If r = 9 cm, find (a) S and (b) V.





Figure 1

Finding the surface area and volume of a sphere.






See Figure 2 Summary of formulas concerning geometric solids.





Figure 2

Summary of formulas concerning geometric solids.


Cite this article

CliffsNotes® To Go
Literature reviews for the iPhone™ & iPod touch® help you study anywhere, anytime.
Learn more now!
cover
Get Up to Speed on the Math You Really Need!
Basic math for use in the real world.
Get Math You Can Really Use — Every Day!
Feeling Trapped by Trapezoids?
Get Help with Geometry Now!