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外心就是外接圆的圆心，也是三边中垂线的交点，内心，内切圆的圆心，是三边角平分线的交点

Posted by sunmoonstar_love at 2005-07-20 19:22:07 on Problem 2504
In Reply To:我都忘了这个叫外心了。三角形的旁心是什么？我一直不知道 Posted by:c0500448264 at 2005-07-20 18:47:54

Followed by:

这两个我都知道，我问的是旁心 (0) frkstyc 2005-07-20 19:23:11
- 三角形有5心，内心，外心，重心，垂心，旁心（外角平分线，据说有些性质但没接触过） (0) sunmoonstar_love 2005-07-20 19:26:36
  - thx (0) frkstyc 2005-07-20 19:32:09
  - Re:三角形有5心，内心，外心，重心，垂心，旁心（外角平分线，据说有些性质但没接触过） (0) lings 2005-07-20 22:39:16
    - 旁心是旁切圆的圆心，有三个 (0) lings 2005-07-20 22:39:42

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