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Proof without Words: Pythagorean Triples via Double Angle Formulas

by David Houston (Henry Ford II High School)

This article originally appeared in:
Mathematics Magazine
June, 1994

Subject classification(s): Geometry and Topology | Plane Geometry | Angles | Triangles
Applicable Course(s): 4.9 Geometry

Geometric construction of Pythagorean Triples through the Double Angle Formula

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