类似中线
在一个三角形中,类似中线是一組(共三条)特殊直线。他们分别是三条中线(顶点和对边中点的连线)关于頂點角平分线的反射。这三条类似中线交于三角形内部一点,称为三角形的类似重心或莱莫恩点,后者以法国数学家埃利·莱莫恩命名,他证明了这个点的存在性。
参考
- Ross Honsberger, "The Symmedian Point," Chapter 7 in Episodes in Nineteenth and Twentieth Century Euclidean Geometry, The Mathematical Association of America, Washington, D.C., 1995.
外部链接
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