补形法是解几何题常用的重要方法之一。所谓补形法,就是将一个图形从某一处移往他处,其面积或体积保持不变,再重新拼接,得到的新图形的面积或体积保持不变,这就是补形的思想方法。补形法重在补,巧妙地对几何体实施补,化不规则图形为规则图形,然后再利用熟知的方法处理即可。 Complementation is one of the most important methods used to solve geometric problems. The so-called complement method is to move a figure from one place to another, its area or volume remains unchanged, and then re-splicing, and the area or volume of the new figure obtained remains unchanged. This is the thinking method of the complement. The complement method focuses on complements, skillfully complements geometry, and irregular patterns are regular patterns, which can then be processed using well-known methods.