A simple proof of Feuerbach's theorem
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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| creator | Hofbauer, Franz |
| description | 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. |
| doi_str_mv | 10.48550/arxiv.1610.03962 |
| format | Article |
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| identifier | DOI: 10.48550/arxiv.1610.03962 |
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| language | eng |
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| source | arXiv.org |
| subjects | Mathematics - History and Overview |
| title | A simple proof of Feuerbach's theorem |
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