如图 已知AB=CD,AE=DF,CE=BF.求证:AF=DE
如图 已知AB=CD,AE=DF,CE=BF.求证:AF=DE
如图,已知AB=DC AE=DF .CE=BF 求证:AF=DE
如图,已知AB=DC,AE=DF,CE=BF,求证:AF=DE
如图,ab=cd,ae=df,ce=fb,求证af=de
已知如图AB=DC,AE=DF,CE=FB求证AF=DE
如图,已知AB=DC,AE=DF,CE=FB,求证AF=DE
已知:如图,AB=DC,AE=DF,CE=FB,求证:AF=DE
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,己知AB//DC,且AB=CD,BF=DE,求证:AE//CF,AF//CE.
如图,AB=DC,AE=DF,CE=BF,试说明AF=DE