Pappus’s Hexagon Theorem [帕普斯定理]

在几何学上,Papus定理也叫Pappus六角形定理 ( Pappus’s Hexagon Theorem ),阐述为:在直线L1上任意取三个点:1、3、5, 在直线L2上任意取三个点2、4、6,

直线1-2与4-5的交点为A, 直线3-4与6-1交点为B ,直线5-6与2-3 交点为C,则A、B、C三点共线。

如下图(黄色三点共线)( The three points of yellow color collinear ! ):

Pappus's Hexagon Theorem [帕普斯定理]

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