三角题的数形结合解法大体有三种方式:一是构造平几图形或立几图形,二是利用三角函数线或三角函数图象,三是转化为解析几何问题.本文仅从坐标思想着眼,谈谈后者即三角向解几转化的主要策略.1把握公式特征实现解几转化解几中的公式如两点间距离、斜率等,各具特色,这就为三角题运 There are basically three ways to combine the number and shape of triangular problems: one is to construct a flat graph or a few graphs, the second is to use a trigonometric function line or a trigonometric function image, and the third is to transform into an analytical geometry problem. This article only focuses on the coordinates. Talk about the latter, that is, the main strategy of several transformations of the triangular directional solution. 1 Grasp the formula features to realize the solution. Several transformation formulas such as the distance between two points, slope, etc., have their own characteristics.