Presented By Presented By Harry Mills / Harry Mills / PRESENTATIONPRO PRESENTATIONPRO 第十九章全等三角形 (复习)Presented By Presented By Harry Mills / Harry Mills / PRESENTATIONPRO PRESENTATIONPRO 知识点 三角形全等的证题思路:Presented By Presented By Harry Mills / Harry Mills / PRESENTATIONPRO PRESENTATIONPRO 归纳:两个三角形全等,通常需要3 个条件, 其中至少要有1 组 对应相等。 边Presented By Presented By Harry Mills / Harry Mills / PRESENTATIONPRO PRESENTATIONPRO 考考你,学得怎样? 1、如图1,已知AC=BD,1=2, 那么ABC ,其判定根 据是_。 2、 如图2,ABC中,ADBC于D ,要使ABDACD,若根据 “HL”判定,还需