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Pythagorean Theorem - Over 20 Proofs

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Visit this site: http://www.cut-the-knot.org/pythagoras/

Author:Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
Description: A general exposition of the Pythagorean theorem, with proofs from Euclid to Garfield - and more. Also links to other sites on the Web with proofs.

Levels: Middle School (6-8), High School (9-12), College
Languages: English
Resource Types: Graphics, Problems/Puzzles, Articles, Web Interactive/Java
Math Topics: Triangles and Other Polygons

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