面积题是指求几何图形的面积,或估算面积大小,或用非面积量(如线段长、角度等)来表示图形面积.面积法,指通过计算或比较图形面积,来推出非面积的几何量或代数量之间的关系.面积法直观、简捷,是解答某代数问题、几何问题的重要方法之一. The area question refers to the area of ​​the geometry, or the size of the estimated area, or the non-area quantity (such as the line segment length, angle, etc.) to represent the area of ​​the figure. The area method means to calculate the non-area geometry by calculating or comparing the area of ​​the figure. The relationship between quantity or generation quantity. The area method is intuitive and simple. It is one of the important methods to solve some algebraic problems and geometric problems.