矩形是学生最熟悉的图形,与矩形有关的平面几何题也是数不胜数.本文例谈矩形内的几个面积问题,这些问题的解决方法虽然说是最基本的,但也是非常有效的.先看下面一个基本问题.如图1,矩形ABCD中,BD为对角线,P为AB上任意一点,则 Rectangle is the most familiar figure of the students, and rectangle related to the plane geometry problems are numerous .This article talk about a few rectangular area problems, although the solution to these problems is the most basic, but it is also very effective. A basic problem. As shown in Figure 1, the rectangle ABCD, BD for the diagonal, P is any point on the AB, then