An illustration of the proof Euclid gives for the first half of the Pythagorean Theorem. [br][br]Much inspired by David Joyce's beautiful version of the Elements.[br][url]http://aleph0.clarku.edu/~djoyce/java/elements/bookI/propI47.html[/url]
More GeoGebra at [url]mathhombre.blogspot.com[/url]