如图,AD\\BC,AD=BC,AE=CF求证(1)DE=DF,(2)AB\\cd
如图,AD\\BC,AD=BC,AE=CF求证(1)DE=DF,(2)AB\\cd
如图,AD∥BC,AD=BC,AE=CF.求证:(1)DE=DF(2)AB∥CD
如图,AD‖BC,AD=BC,AE=CF.求证(1)DE=DF,(2)AB‖CD
如图:AD//BC,AD=BC,AE=CF.求证:(1)DE=DF,
如图,AD=BC AD//BC AE=CF,求证(1)DE=BF (2)AB//CD
如图,已知AB=CD,AE=CF,DE=BF,求证AD=BC
如图,已知AB平行CD,AE平行CF,DE=BF,求证:(1)AE=CF(2)AD平行BC
已知:如图,AB=CD,BC=DA,AE=CF.求证:DF=DE
如图,已知AE=CF,AD=BC,AB=CD,DF=BE.求证:(1)∠E=∠F;(2)∠1=∠2.
如图,已知AE=CF,AD=BC,AB=CD,DF=BE.求证:∠1=∠2
如图,已知AE=CF,AD=BC,AB=CD,DF=BE.求证角1=角2
如图,AB=DC,DE=BF,AE=CF 求证 (1)∠ABE=∠CDF (2)AB//CD (3) AD=BC 急求