Pythagoras Theorem

The Pythagorean theorem: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c).


PROOFS

Proof using similar triangles

Proof by rearrangement of four identical right triangles

Animation showing another proof by rearrangement

Proof using an elaborate rearrangement

LINK:The most famous proofs of the Pythagorean proposition