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AD‖BC,AD=CB,AE=CF.求证:DF=BE
如图,已知BE=DF,AC=CF,AE‖CF.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,等腰梯形ABCD中,AD‖BC,AE‖DC,DE‖AB,求证AE=DF
已知,AB=CD,AD=BC,且AE‖CF,求证AE=CF