Garfield’s Pythagorean Proof

Опубликовано: 02 Март 2026
на канале: Mathematical Visual Proofs
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This is a short, animated visual proof of the Pythagorean theorem (the right triangle theorem) using the trapezoid that is now attributed to President James Garfield. This theorem states the square of the hypotenuse of a right triangle is equal to the sum of squares of the two other side lengths.

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This animation is based on a proof due to James A. Garfield. For a static version of this proof, see Roger Nelsen's first "Proof Without Words: Exercises in Visual Thinking" compendium (page 7) : https://bookstore.ams.org/clrm-1. You can also check out Howard Eves' "Great Moments in Mathematics (Before 1650)" page 34-36.

You can also see the original on MAA Convergence: https://maa.org/press/periodicals/con...

For other proofs of this same fact check out the following playlist:

   • Pythagorean Theorem  


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