Shirali, Shailesh
(2023)
Two New Proofs of the Pythagorean Theorem  Part I.
At Right Angles.
pp. 712.
ISSN 25821873
Abstract
The Pythagorean theorem (‘PT’ for short) is easily the best known result in all of mathematics. What is less wellknown is the fact that among all theorems in mathematics, it holds the “world record” for the number of different proofs. There is no other theorem that even comes close! (See [2] and [3].) In the book The Pythagorean Proposition [1] (published in 1940), the author Elisha S. Loomis lists as many as 370 different proofs of the theorem. Since that time, close to a century back, still more proofs have appeared
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