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平行线与角是初中几何中的基本图形,角的平分线在平面几何中具有重要的作用.本文通过典型例题对平行线与角平分线的结合进行了分析与探究,发现当平行线与角平分线在同一图形中出现时,不难得出相等的角或边的结论,用“平、平、等”三字概括此类几何图形中三者之间的微妙的关系.
The parallel lines and corners are the basic figures in the junior middle school geometry, and the bisector of angle plays an important role in the plane geometry.In this paper, we analyze and explore the combination of parallel lines and angle bisector by typical examples, and find that when parallel lines and angles When the bisector appears in the same graph, it is not hard to come to the conclusion that the angle or edge is equal, and the subtle relationship between the three in such geometrical figures is summarized with the words “flat, flat, etc.”.