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:∠E=∠F.
如图,已知,AB=CD,AE⊥BC于E点,DF⊥BC于F,AE=DF,求证CE=BF
如图,在梯形ABCD中,AB//CD,AD=BC,点E,F在AB上,且AE=BF,连接CE,DF.求证:CE=DF .
已知:如图,E﹑F是线段BC上的两点,AB∥CD,AB=DC,CE=BF.求证:AE=DF.
已知:如图,AB,CD相交于点O,AC‖DB,OC=OD,E,F为AB上两点,且AE=BF,求证:CE//DF
已知:如图,AB、CD相交于点O,AC‖DB,OC=OD,E、F为AB上两点,且AE=BF,求证:CE//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
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⊥BC,DF⊥BC,垂足分别为E,F,CE=BF.求证AE=DF
已知:如图,AB,CD交于O点,CE‖DF,CE=DF,AE∥BF.求证:∠ACE=∠BDF.