Euclid's Proof of the Pythagorean Theorem
The following window shows a geometrical proof of Pythagoras' Theorem.
The three buttons, NEXT, BACK, RESTART, allow you to go through the steps
of the proof. As well, if you would like to repeat the action of the diagram
simply click on the image. (The text can be retyped by clicking on the text
This Java applet was written by Jim Morey at
the Universtiy of British Columbia.
His home page.
Take a look at the poorly documented program
(Morey's description) and its helpers Banner
It was hacked from the hotjava people.