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梅涅劳斯（Menelauss）定理及其逆定理

2009-05-24 13:55:58| 分类：几何中著名的定理 | 标签： |举报 |字号大中小订阅

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说明：恰当的选择截线是应用梅涅劳斯定理的关键，

其逆定理常用于证明点共线，应用很广泛。

解决比较复杂的问题时注意赛瓦定理与梅涅

劳斯定理联用。

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