美轮美奂的Morley定理[1]称:图1一个三角形的六条内角三等分线,与每边相邻的两线各交于一点,这三点是一个正三角形的顶点.(如图1)该定理一经问世,便一直为人们所津津乐道,的确不失为一个令人惊讶的数学定理.图2然而笔者发现,若将通常定义的三角形予以某种拓广:如将其一顶点A置 The magnificent Morley theorem [1] states: Figure 1 Three triangles of six internal corners of a triangle intersect each other at two adjacent lines, which are the apexes of an equilateral triangle. 1) This theorem, once published, has been remembered by people for years and is indeed a surprising mathematical theorem. Figure 2 However, I found that if the triangle is usually defined to some extent: such as the vertex A Set