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A Proof of Lester's Circle Theorem
Author

Michael Trott
Organization: Wolfram Research, Inc.
Department: Scientific Information Group
Subject

*Mathematics > Geometry > Plane Geometry
Keywords

Lester's circle theorem, proof, Feuerbach's circle, circumcenter, Fermat points
Related items

*Applying GroebnerBasis to Three Problems in Geometry   [in Articles]
URL

http://mathworld.wolfram.com/LesterCircle.html
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GeometryProof.nb (2.4 MB) - Mathematica Notebook