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Thales's Theorem: A Vector-Based Proof

Thales's theorem (c. 500 BCE) is a classical result in Euclidean geometry. The scalar product of two vectors is used to provide a formal proof, illustrating the usefulness of vector methods in geometry.

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"Thales's Theorem: A Vector-Based Proof" from the Wolfram Demonstrations Project
 http://demonstrations.wolfram.com/ThalessTheoremAVectorBasedProof/
Contributed by: Tomas Garza




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