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二元一次方程组是应用数形结合思想解题的最充分体现,是解决几何图形中有关边长、周长以及面积等问题的重要纽带和桥梁.下面本文结合例题介绍二元一次方程组在几何图形问题中的七点具体应用,供同学们学习时借鉴.一、在平行四边形问题中的应用例1如图1所示,在(?)ABCD中,AE⊥
Binary equation is the best way to solve the problem by the combination of the idea of number and form, and it is an important link and bridge to solve the problem of edge length, circumference and area in the geometry. Geometrical problems in the seven specific applications, for students to learn from. First, the application of parallelogram problems in Example 1 as shown in Figure 1, (?) ABCD, AE ⊥