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近年来,全等三角形开放题一直是中考的热点题型.现归类解析,供同学们参考.一条件添加型例1如图1,点D,E分别在线段AB,AC上,AE=AD.不添加新的线段和字母,要使△ABE≌△ACD,需添加的一个条件是____(写一个条件即可).解析:这是一道条件添加型题目.解答时需要运用逆向思维,依据全等三角形的判定方法,补充所缺少的条件.已有条件是AE=AD,∠A=∠A.要使
In recent years, the trigonometry open question has been the hot topic question in the exam. It is now classified and analyzed for the students to refer to. A conditional addition example 1 is shown in Fig. 1, points D and E are on line AB and AC respectively, AE= AD. Do not add new line segments and letters. To make △ABE≌ΔACD, one condition to be added is ____ (write a condition only). Resolution: This is a conditional add-on problem. The solution is to use reverse thinking. , According to the method of judging the equal triangle, to supplement the missing conditions. The existing condition is AE=AD, ∠A=∠A.