向量知识在立体几何中占有重要地位,合理的使用能起到化繁为简的效果.法向量更是打破了立体几何的传统解法,它可以减少大量的辅助作图以及对图形的分析、想象,直接使用代数运算来解决立体几何中的距离和角的大部分问题.下面我们来看一下法向量在解题中的应用. Vector knowledge occupies an important position in the three-dimensional geometry. Reasonable use can achieve the effect of simplifying and simplifying. The normal vector breaks the traditional solution to the three-dimensional geometry. It can reduce the amount of auxiliary mapping and the analysis and imagination of the graphics. Using algebraic operations directly to solve most of the problems of distances and angles in solid geometry. Let’s take a look at the application of normal vectors in solving problems.