如图,已知,AB=CD,CE=DF,AE=BF,则CE‖DF吗?为什么?

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 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 如图:AB=CD,AE=DF,CE=FB.求证:AE∥DF 如图,已知,AB=CD,AE⊥BC于E点,DF⊥BC于F,AE=DF,求证CE=BF 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,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,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 如图,ab=cd,ae=df,ce=fb,求证af=de 如图,AB=CD,AE=DF,CE=BF.[1]判断EC和BF 如图,AE=DF,CE=BF,AB=CD,证明BE平行CF 如图已知AE=DF,AB平行CD,CE垂直于AD求证1角A=角D2BF=CE 如图10,若AB=CD,AE=DF,CE=BF,则AB与CD平行吗?为什么?