解三角形是近几年来高考每年必考的热点内容之一,解这类习题的常规思路是综合运用正(余)弦定理及三角公式来完成,这就要求学生具备一定的推理能力和变换技巧.本文试以近年来高考试题为例,介绍一种通过作三角形的高实现化斜三角形为直角三角形,巧借勾股定理解题的策略,供大家参 The solution to the triangle is one of the hot topics that must be considered each year in the college entrance examination in recent years. The common idea to solve this type of problem is to use the positive (plus) string theorem and the triangular formula. This requires students to have a certain reasoning ability and transformation skills. This article tries to take a high-achieving test in recent years as an example to introduce a strategy for high-achieving oblique triangles to be right-angled triangles by making triangles.