Wild About Math! Making Math fun and accessible


Paper-folding proof of Pythagoras

Here's a great video by Vi Hart that shows a couple of proofs of the Pythagorean Theorem. Nothing new in terms of the proofs; they're ones I've seen often. What's clever about Vi's approach is that she uses paper-folding to create the elements of the proof. I like this kinesthetic approach to a couple of familiar proofs.

As always with Vi's exuberant videos, it would be nice to be able to watch them at half speed!


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  1. I like this proof of the Pythagorean Theorem. Thanks

  2. the proof is nice but it is little fast

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