已知:如图,AB=DC,AE=BF,CE=DF,∠A=60°.
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
已知:如图,AD=CD CE=BF DF=AE 求证AB‖DC
已知如图,点E,F在BC上BF=CE,AB=DC,AE=DF求证∠A=∠D
如图,AB=DC,AE=DF,CE=BF,试说明AF=DE
已知:如图,点A,B,C,D在同一条直线上,EA⊥AD,FD⊥AD,AE=DF,CE=BF.求证:AB=DC.
如图①所示,已知四边形ABCD中,AD//BC,∠ABC=∠DCB,AB=DC,AE=DF,试说明BF=CE
如图,已知AB=CD,AE=BF,CE=DF,求证:∠E=∠F.
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 已知AB=CD,AE=DF,CE=BF.求证:AF=DE
已知:如图,E﹑F是线段BC上的两点,AB∥CD,AB=DC,CE=BF.求证:AE=DF.