2. Prism A prism is a polyhedron, with two parallel faces called bases. The other faces are always parallelograms. The prism is named by the shape of its base.

3. Examples

4. Rectangular Prism A box. All sides are rectangles.

5. Triangular Prism The bases are triangles.

6. Pyramid Has 1 base. All other sides are triangles. Named after the shape of its base.

7. Triangular Pyramid

8. Square Pyramid

9. Cylinder A cylinder is similar to a prism, but its two bases are circles, not polygons.

10. Cone Has a circular base and one vertex.

11. Sphere

12. Practice Problem 1

13. Cone Sphere Square pyramid Rectangular prism

14. Practice Problem 2

16. Practice Problem 3

17. Practice Problem 3 cont.

18. Practice Problem 3

19. Nets A net is a two-dimensional representation of a three- dimensional figure. It shows all of the faces of the figure.

20. Nets http://www.mathsnet.net/geometry/solid/nets.html

21. Practice Problem 1

22. The figure has 1 circular base

23. Practice Problem 2

25. Practice Problem 3

28. Practice Problem 4

30. Additional Resources http://www.lifeisastoryproblem.org/explore/index_net.ht ml http://www.lifeisastoryproblem.org/explore/index_net.ht ml http://www.onlinemathlearning.com/geometry-nets.html