We also discussed how the Pythagorean Theorem can be used to find the missing side of a right triangle. We also were able to see how it relates to the area of the 3 squares made on each side of the right triangle.
Check out the links below for more examples.
http://www.youtube.com/watch?v=L7EsAbDX6m8
Homework: Complete the last page of the 4.4 notes (8 - 22).