如图所示,AB=CD,AE=DF,CE=BF,求证 AE‖DF

如图所示,AB=CD,AE=DF,CE=BF,求证 AE‖DF AB=CD,CE垂直DF,CE=DF,用平移知识证明,AE=BF 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. 如图:AB=CD,AE=DF,CE=FB.求证:AE∥DF 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 如图所示,已知,AB=CD,CE=DF,AE=BF,则AE∥BF,则AE∥BF吗?为什么? 如图所示,已知点E、F在BC上,AB=DC,BF=CE. (1)若AE=DF,求证：CD∥AB (2如图所示,已知点E、F在BC上,AB=DC,BF=CE.(1)若AE=DF,求证：CD∥AB(2)若CD∥AB,求证：AE∥DF 已知,如图所示,AB是圆O的直径CD是弦AE垂直CD于E,BF垂直CD于F,求证CE=DF 如图所示,已知点E,F在BC上,AB=DC,BF=CE.（1）若AE=DF，求证CD//AB；（2）若CD//AB，求证AE//DF。 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 如下图,AB=DC,BF=CE,AE=DF,求证AB//CD 如图所示,D为△ABC的边AB上一点,DF交AC与点E,且AE=CE,FC//AB.求证：CD=AF