已知AB=CD,AE=DF,CE=BF,AF⊥BC,DE⊥BC,试说明AF=DE图不太准，原谅~

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 如图,已知,AB=CD,CE=DF,AE=BF,则CE‖DF吗?为什么? 已知:如图,AD=CD CE=BF DF=AE 求证AB‖DC 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 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,AB=CD,AE=DF,CE=BF.[1]判断EC和BF 如下图,AB=DC,BF=CE,AE=DF,求证AB//CD 如图 已知AB=CD,AE=DF,CE=BF.求证：AF=DE快 如图,已知AB=CD,AE=BF,CE=DF,求证:∠E=∠F 如图,已知AB=CD AE=BF CE=DF.求证△AEC≌△BFD 已知;AB为圆O的直径,CD为弦,CE⊥CD交AB于E DF⊥CD交AB于F求证;AE=BF 已知;AB为圆O的直径,CD为弦,CE⊥CD交AB于E DF⊥CD交AB于F求证;AE=BF