距离是立体几何中的基本位置关系之一,也是高考的重点内容之一,均可转化为点到平面的距离,而这个转化过程要体现出线面的垂直关系的运用,分析近几年的高考试题,将距离的求法可归结为以下几种方法.1直接法即可直接作出点到平面的垂线,再求出其垂线段的长度,此种方法的关键是要确 Distance is one of the basic positional relations in the three-dimensional geometry, and it is also one of the key contents of the college entrance examination. It can be transformed into a point-to-planar distance. This transformation process should reflect the use of the vertical relationship of the line surface and analyze the college entrance examination in recent years. Questions, the distance of the method can be attributed to the following methods. 1 direct method can be directly to the vertical point to the plane, and then find the length of its vertical line, the key to this method is to confirm