Suppose that you painted every side of a rectangular solid that has been made from unit cubes.
How can you determine the number of unit cubes that will be painted on 6 sides? 5 sides? 4 sides? 3 sides? 2 sides? 1 side? 0 sides?
If you experience difficulties running this activity in your browser, please see the browser help file for advice.
© 2006 Applet written by S. Keller, Department of Mathematics, Michigan State University