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Pythagorean Theorem: proof and distance formula

Sage Cooley, Co-Opinions Editor

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Early on in students’ mathematical careers, we’re familiarized with the Pythagorean Theorem. Ever wonder where it comes from? Learn Pythagoras’ famous proof through this video! Using the theorem, I also derive the distance formula — an alternative to memorization.

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Pythagorean Theorem: proof and distance formula