| 也谈四面体的“五心” |
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| 引用本文： | 陈德华.也谈四面体的“五心”[J].蒙自师范高等专科学校学报,1997(2). |
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| 作者姓名： | 陈德华 |
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| 作者单位： | 云南蒙自师范高等专科学校数学系 讲师661100蒙自 |
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| 摘 要： | 本文通过类比,从三角形的“五心”(外心、内心0、旁心、重心、垂心)的概念得出四面体的“五心”的概念,并对其进行详尽的推证。向量法、解析法兼用,将几何证明推进到定量能算的层面。
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| 关 键 词： | 外心 内心 旁心 重心 垂心 共轴面束 |
Talk About The Conception of Tetrahedron "Five Centre |
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| Chen Dehua.Talk About The Conception of Tetrahedron "Five Centre[J].Journal of Mengzi Teachers' College,1997(2). |
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| Authors: | Chen Dehua |
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| Abstract: | In this paper , We give the conception if tetrahedron "five centre" by analogism from the conception of triangle "five centre" , and show that it exhaustively. We also use the anlytic method and vector method , and devolep geometrical. proof to the extent of calculation. |
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| Keywords: | gircumcentre incentre escentre barrcentre orthocentre and plane pencil of coaxis |
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