如图,AB=DC,AD=BC,求证①∠A=∠D,②AE=CE
如图,AB=DC,AD=BC,求证①∠A=∠D,②AE=CE
如图,AD=BC,AB=DC,求证∠A+∠D=180°
已知如图,点E,F在BC上BF=CE,AB=DC,AE=DF求证∠A=∠D
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,已知AB垂直于BC,DC垂直于BC,E在BC上,且AE=AD,AB=BC求证CE=CD
如图AB垂直BC,DC垂直BC,E在BC上,AE=AD,AB=BC,求证:CE=CD
如图,已知AB⊥,DC⊥BC,E在BC上,且AE=AD,AB=BC,求证CE=CD.
已知:如图,AD=CD CE=BF DF=AE 求证AB‖DC
如图所示,CD⊥AD于点D,AB⊥AD于点A,∠ACB=∠BAC,CD=CE,连结AE.求证:AE⊥BC
如图,已知AE交BC于点D,∠1=∠2=∠3,AB=AD.求证DC=BE.
如图,已知AE交BC于点D,∠1=∠2=∠3,AB=AD.求证:DC=BE.
如图,梯形ABCD中,AD‖BC,AE‖CD,BD平分∠ABC,求证AB=CE