Surprising Uses of the Pythagorean Theorem

The Pythagorean theorem is a celebrity: if an equation can make it into the Simpsons, I'd say its well-known.
But most of us think the formula only applies to triangles and geometry. Think again. The Pythagorean Theorem can be used with any shape and for any formula that squares a number.
Read on to see how this ...Vector Calculus: Understanding Circulation and Curl
Techniques for adding the numbers 1 to 100
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