AB=CD,AE=DF,CE=BF,判断EC和BF的关系并说明理由.

如图,AB=CD,AE=DF,CE=BF.[1]判断EC和BF 如图,AB=CD,AE=DF,CE=BF,判断EC和BF的关系,说明理由 AB=CD,AE=DF,CE=BF,判断EC和BF的关系并说明理由. AB=CD,CE垂直DF,CE=DF,用平移知识证明,AE=BF 如图所示,AB=CD,AE=DF,CE=BF,求证 AE‖DF 如图,AB=CD,AE=DF,CE=BF,求证AE平行DF 如图,AB=CD,AE=DF,CE=BF,求证：AE平行DF AB=CD,AE垂直BC,DF垂直BC,CE=BF,求证AE=DF 已知,AE=DF,BF=CE,AE//df,问ab=cd吗?说明理由. 已知,AE=DF,BF=CE,AE//DF,问AB=CD吗 全等三角形AB=CD,AE=DF,CE=BF,求AE//DF 如下图,AB=DC,BF=CE,AE=DF,求证AB//CD 如图AB=AD,AE=DF,BF=CE,试判断AB与CD,AE与FD的位置关系 如图,已知,AB=CD,CE=DF,AE=BF,则CE‖DF吗?为什么? 如图,AB=CD,AE⊥BC,DF⊥BC,CE=BF,求证AE=DF 如图,AB=CD,AE⊥BC,DF⊥BC,CE=BF,求证AE=DF 已知:如图,AD=CD CE=BF DF=AE 求证AB‖DC AE=DF CE=BF AB=CD 问BE和CF平行吗?为什么?