- http://mathforum.org/isaac/problems/pythagthm.html
- http://www.rblewis.net/technology/EDU506/WebQuests/pythagoras/pyththeorem2.htm
- http://www.abu.nb.ca/Courses/GrPhil/Pythagoras.htm
- http://www.thebigview.com/greeks/pythagoras.html
- http://en.wikipedia.org/wiki/Pythagoras
- our classroom discussion
- Microsoft Word clip art
Bibliography
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