Pythagoras' Proof

Explore the proof of the Pythagorean Theorem offered by Pythagoras himself. Consider the two congruent squares, each having a+b as its side. The first square is dissected into six piece s -namely, the two squares on the legs a and b and four right triangles congruent to the given triangle with legs a and b and hyptenuse c. You can use sliders to vary a and b. Use media buttons to observe step-by-step visual proof of the Pythagorean Theorem.