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求阴影部分的面积是平面几何中的一个常见问题,解答这类问题,不仅需要扎实的基础知识,还需要对知识的灵活应用,本文将举例说明求阴影部分面积的一种常用方法——等积转化.“等积转化”就是利用面积相等的图形间的等量代换将不规则图形转化为规则图形.
Solving these types of problems by finding the area of the shaded area is a common problem in plane geometry and requires not only a solid foundation of knowledge but also a flexible application of knowledge. This article will give an example of a commonly used method of finding the area of a shaded area. Product conversion “” Isometric conversion "is the use of equal area between the graphics equivalent to the irregular graphics into regular graphics.