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本文对平面几何的面积问题就以下几个方面的内容予以简要介绍。 (一) 等分图形面积。主要根据下面两条性质: 1.三角形中任一中线将原三角形分为两个等积的三角形 2.过封闭的中心对称图形的中心的任一直线将原图形分为两个等积形。
This paper briefly introduces the following aspects of the area of planar geometry. (a) Divide the graphic area. It is mainly based on the following two properties: 1. Any triangle in the middle line divides the original triangle into two equal-area triangles. 2. Any line in the center of the closed central symmetrical figure divides the original figure into two equal-shapes.