Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsA Device that Illustrates Pythagoras' Theoremhttp://demonstrations.wolfram.com/ADeviceThatIllustratesPythagorasTheorem/]]>http://demonstrations.wolfram.com/ADeviceThatIllustratesPythagorasTheorem/Da Vinci's Proof of the Pythagorean Theoremhttp://demonstrations.wolfram.com/DaVincisProofOfThePythagoreanTheorem/]]>http://demonstrations.wolfram.com/DaVincisProofOfThePythagoreanTheorem/A Dissection Proof of Pythagoras's Theoremhttp://demonstrations.wolfram.com/ADissectionProofOfPythagorassTheorem/]]>http://demonstrations.wolfram.com/ADissectionProofOfPythagorassTheorem/Mamikon's Proof of the Pythagorean Theoremhttp://demonstrations.wolfram.com/MamikonsProofOfThePythagoreanTheorem/]]>http://demonstrations.wolfram.com/MamikonsProofOfThePythagoreanTheorem/An Intuitive Proof of the Pythagorean Theoremhttp://demonstrations.wolfram.com/AnIntuitiveProofOfThePythagoreanTheorem/]]>http://demonstrations.wolfram.com/AnIntuitiveProofOfThePythagoreanTheorem/Euclid's Proof of the Pythagorean Theoremhttp://demonstrations.wolfram.com/EuclidsProofOfThePythagoreanTheorem/]]>http://demonstrations.wolfram.com/EuclidsProofOfThePythagoreanTheorem/Einstein's Most Excellent Proofhttp://demonstrations.wolfram.com/EinsteinsMostExcellentProof/]]>http://demonstrations.wolfram.com/EinsteinsMostExcellentProof/Pythagorean Dissectionhttp://demonstrations.wolfram.com/PythagoreanDissection/]]>http://demonstrations.wolfram.com/PythagoreanDissection/