图形信息题是指将几何图形作为信息的载体的一类数学问题.这类问题常将某些已知条件,特别是数量关系条件隐含在题目的附图中.解决此类问题,必须认真仔细地去观察图形,正确地从图形中提取信息,找出数量关系,现举例如下:例1如图1,把一个面积为1的正方形,等分成两个面积为12的矩形 The graphic information problem refers to a class of mathematical problems that use geometry as a carrier of information. Such problems often conceal certain known conditions, especially the conditions of quantity relations, in the drawings of the problem. Solving such problems must be serious. Carefully observe the graph and extract the information from the graph correctly to find out the quantitative relationship. The following example is as follows: Example 1 As shown in Figure 1, a square with an area of ​​1 is divided into two rectangular areas with an area of ​​12.