1f+-+A+Contemporary+Proof

There are over 400 proofs of the Pythagorean Theorem. They span the globe and most of recorded history. Consider this simple and very elegant proof.

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1. This proof has at its center the theorem that //when two chords intersect in a circle, the product of the segments of one chord is equal to the product of the segments of the other chord//.

2. Does this suggest a proof?

3. Check the "Show Hints" checkbox. Express the relationship defined by the theorem above in terms of a, b, and c and simplify.

4. Have you proved the Pythagorean Theorem? If not, check the "Show Proof" checkbox.

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