A simple proof of Feuerbach's theorem

Franz Hofbauer

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arXiv · 1610.03962

A simple proof of Feuerbach's theorem

Franz Hofbauer

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Abstract

The theorem of Feuerbach states that the nine-point circle of a nonequilateral triangle is tangent to both its incircle and its three excircles. We give a simple proof of this theorem.

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Franz Hofbauer. 2016-10-13. A simple proof of Feuerbach's theorem. https://arxiv.org/abs/1610.03962

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