This GeoGebra demonstration will show one of the most famous proofs of Pythagorean Theorem ([math]a^2 + b^2 = c^2[/math]): the rearrangement proof![br][br]This will require a bit of concentration and basic mathematical skills to understand...[b]But, once you understand it, you will see how cool this is![/b][br](Click here if you want to explore through more proofs of the theorem, Here is the link: [url]http://en.wikipedia.org/wiki/Pythagorean_theorem#Proofs[/url])