如图所示，已知AB=DC，AE=DF，CE=BF，试说明：AF=DE．

如图,AB=DC,AE=DF,CE=BF,试说明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 AB=DC.AE=DF.CE=BF.求证：AF=DE. 已知AB=CD,AE=DF,CE=BF,AF⊥BC,DE⊥BC,试说明AF=DE 如图 已知AB=CD,AE=DF,CE=BF.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AB‖DC,AB=CD,BF=DE,求证：AE‖CF,AF‖CE 如图,已知AB＝DC,AE＝DF,CE＝BF,求证AF＝DE AB=DC,AE=DF,CE=FB,求证AF=DE