在中考中,我们常常遇到求图形面积的问题.这些图形多数是由一些规则图形组合、重叠而成的图形.下面举例说明解这类题的方法.一、和、差法对于规则图形的面积,我们可以直接利用面积公式求得.对不规则图形的面积问题,往往将所求图形的面积转化为规则图形面积的和或差,这是求面积? In the senior high school entrance examination, we often face the problem of finding the area of ​​graphics. Most of these graphics are composed of a combination of regular graphics and overlapping graphics. Here is an example of how to solve such problems. One, sum, difference for regular graphics Area, we can directly use the area formula to obtain. On the area of ​​irregular graphics, often the area of ​​the graphics to be obtained is converted into the sum or difference of the area of ​​the regular graphics, which is the area?