如图,AE=FC,AB=CD,BE=DF,∠F=∠ADF,求证DF‖BE
1.如图,点A,C,B,D在同一条直线上,已知BE∥DF,∠A=∠F,AB=FD.求证:AE=FC
如图,点A、B、C、D在同一条直线上,BE∥DF,∠A=∠F,AB=FD.求证:AE=FC.
如图AB=CD,BE=CF,AE=DF求证OA=OD
如图,已知ABⅡCD,OA=OD,AE=DF,求证:BEⅡCF.
如图,已知AE=CF,AD=BC,AB=CD,DF=BE.求证:(1)∠E=∠F;(2)∠1=∠2.
如图,CA平分∠BCD,AB=AD,AE⊥CB于E,AF⊥CD于F,求证:BE=DF.
如图,AB//DC,点E、F在BD上,BE=DF.求证:AE//CF
如图,已知AD=BC,BE⊥AC于E,DF⊥AC于F,且BE=DF.求证AB‖CD
如图,已知四边形ABCD中,E,F分别在AB,CD上,且AB/AE=DC/DF,求证(1)AB/EB=DC/FC
如图,已知AB‖CD,AE‖DF,求证∠BAE=∠CDF
如图已知AB‖CD,AE∥∠DF,求证∠BAE=∠CDF
如图,AB=CD,AE=DF,CE=BF,求证AE平行DF