Date: Mon, 3 Mar 1997 19:30:34 -0600 (CST) Subject: Pythagorean Theorem Name: Greg
Who is asking: Student
Question: Where can a copy of the proof be located? Hi GregThe president who constructed a proof of the Pyrhagorean theorem is Garfield. We found the proof in "Elisha Scott Loomis, The Pythagorean Proposition, The National Council of Teachers of Mathematics, 1968". This is a wonderful book. It was first published in 1927, and the 1968 edition published by NCTM is a reissue of the second edition that was published in 1940. The book contains 367 proofs of the Pythagorean theorem. One of these, proof number 231, is attributed to President Garfield. (Loomis has a number of historical notes to justify his claim that this proof is due to Garfield.) What follows is Garfield's proof according to Loomis.
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