本文以正方体模型为例,给出求异面直线所成角的几种思维方向. 一、平移法按定义,将两条异面直线中的一条或两条同时平移,使其相交,则相交后所成的锐角或直角即为所求角.这是求异面直线所成角的主要方法.按平移的方式,有相等平移,倍半平移,比例平移,补形平移等多种方法. In this paper, taking the square model as an example, several directions of thinking are given to find the angles formed by the different straight lines. First, by the translation method, one or two of the two out-of-plane straight lines are translated at the same time so that they intersect and intersect. After the acute angle or right angle is the desired angle. This is the main method to find the angle formed by the different surface straight line. According to the translation method, there are equal translation, half-translation, proportional translation, complementarity translation and other methods.