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三角学/圆和三角形/Morley三角形
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来自维基教科书,开放世界开放书籍
<
三角学
Morley三角形
由Frank Morley于1899年发现。
取任意三角形并三分其三个角。这些三等分线在第一个三角形内部定义了一个较小的三角形,称为该三角形的
Morley三角形
。它始终是等边的。
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教科书:三角学
华夏公益教科书