Three-Dimensional (3-D) Shapes
Three dimensional shapes are similar to polygons EXCEPT they have length, width, and height. A face is the surface of a shape. Here are few examples of three-dimensional shapes:
3-D shapes can be seen in every day life. Click on the video to the left to check out some examples of 3-D shapes you may see.
What other objects can you think of? Have you seen any of the objects that were shown in the video?
As you can see, you can turn pretty much any polygon into a three dimensional object. What about this 3-D shape? Why do you think this is called an octagonal prism? (Place your cursor over the object to reveal why.)