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goobster  ·  3196 days ago  ·  link  ·    ·  parent  ·  post: Help!

I watch Vi Hart's YouTube channel because she is a skilled mathematician and storyteller. I get math when she presents it.

And I just watch her videos because they are good. Not because I need the math.

Here's her answer to your question, visually presented: Pythagoras via Origami