AB=CD,AE=DF,CE=BF.求证:AE∥DF
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
AB=CD,AE垂直BC,DF垂直BC,CE=BF,求证AE=DF
已知:如图,AB=CD,AE=CF,BE=DF.求证:AF∥CE
如图,已知AB=DC,AE=DF,CE=BF,求证AF=DE
如图,AB=CD,AE⊥BC,DF⊥BC,CE=BF.求证:AE=DF.
如图 已知AB=CD,AE=DF,CE=BF.求证:AF=DE
已知:如图,AD=CD CE=BF DF=AE 求证AB‖DC
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