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![](/common/images/spacer.gif) A Proof of Lester's Circle Theorem
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Organization: | Wolfram Research, Inc. |
Department: | Scientific Information Group |
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![](/common/images/spacer.gif) Lester's circle theorem, proof, Feuerbach's circle, circumcenter, Fermat points
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![](/common/images/spacer.gif) http://mathworld.wolfram.com/LesterCircle.html
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| GeometryProof.nb (2.4 MB) - Mathematica Notebook |
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