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角平分线和等腰三角形都是轴对称图形,同时也是极为重要的几何图形。在解决有关问题时,要掌握一些常规的处理方法。本文以下面几例来说明运用角平分线和等腰三角形解题的技巧。一、有关角平分线问题在解决含有角平分线的问题时,常需添加的辅助线有以下几种:1.由角的平分线上一
The angle bisectors and isosceles triangles are both axisymmetric and extremely important geometric shapes. When solving related problems, it is necessary to grasp some conventional methods of handling. This article uses the following examples to illustrate the use of angular bisectors and isosceles triangles to solve problems. I. About the angle bisector problem When solving the problem that contains the angle bisector, the auxiliary lines that need to be added are the following: 1. The bisector of the angle