在证明三角形全等时,有些同学往往找不出说明两个三角形全等的条件,有的题目直接给出的全等条件往往只有一个或两个,而其余的条件常常隐藏于题设中或图形中,需要我们自己去挖掘、发现和寻找.下面举例说明如何让挖掘题中的隐含条件,供同学学习时参考.一、挖掘“公共边”解题 When attending to the triangle congruent, some students often can not find out the conditions for the equality of the two triangles. Some of the questions usually give only one or two congruent conditions, while the remaining conditions are often hidden in the subject or Graphics, we need to dig, find and find the following example shows how to make mining problems implicit conditions for students to learn reference. First, mining “public side ” solution