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arXiv 2101.02592math.HOmath.MG
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四面体各面上中心点的排列

Arrangement of Central Points on the Faces of a Tetrahedron

Stanley Rabinowitz

摘要:

本文系统地研究了四面体上各种三角形中心(如正心或圆心)的性质。对于每六种类型的四面体,我们检查超过100个中心位于四面体的四面体。使用计算机,我们确定16个条件中的任何一个何时发生(例如四个中心共面)。一个典型的结果是:从一个外切四面体的每个顶点到相对面的Gergonne点的直线是共点的。

英文摘要:

We systematically investigate properties of various triangle centers (such as orthocenter or incenter) located on the four faces of a tetrahedron. For each of six types of tetrahedra, we examine over 100 centers located on the four faces of the tetrahedron. Using a computer, we determine when any of 16 conditions occur (such as the four centers being coplanar). A typical result is: The lines from each vertex of a circumscriptible tetrahedron to the Gergonne points of the opposite face are concurrent.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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