高中阶段,空间的角包括:异面直线所成的角、直线和平面所成的角、二面角。它们是教材的重点,同时也是高考的热点,几乎是每考必考。它们的求法,不外乎两种:传统方法和向量方法。本文结合实例,对上述三种角的求法作一总结,以期对同学们的学习有所启示。一、异面直线所成的角 High school stage, the angle of space include: the angle formed by a straight line, the angle between the straight line and the plane, dihedral angle. They are the focus of teaching materials, but also the hot college entrance examination, almost every test will be test. Their method of seeking nothing more than two: the traditional method and vector method. Based on the examples, this article sums up the above three kinds of angles in order to enlighten the students' learning. First, the angle formed by a straight line