面积法,就是利用面积关系来说明数学中的某些恒等式、不等式,或证明某些定理。这是一个古老而又年轻的方法。说它古老,是因为早在三千多年前,在几何学还没形成一门系统学科时,人们就已经会用这种方法来解决某些问题了,几何学于是和面积结下了不解之缘。几何学的产生,源于人们对土地面积测量的需 Area method, is to use the area relationship to illustrate some of the mathematical identity, inequality, or to prove some theorems. This is an old and young way. It is ancient because some people already used this method to solve some problems as early as three thousand years ago, when geometry did not form a systematic discipline. Geometry thus ended up with an area Solution of the edge. The emergence of geometry comes from the need of people to measure the area of ​​the land