如图,AD=BC AD//BC AE=CF,求证(1)DE=BF (2)AB//CD
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
如图,AD\\BC,AD=BC,AE=CF求证(1)DE=DF,(2)AB\\cd
如图,AB=DC,DE=BF,AE=CF 求证 (1)∠ABE=∠CDF (2)AB//CD (3) AD=BC 急求
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
1.如图1,ad平行bc,ad=bc,ae=cf,求证de平行bf
如图,已知AD平行BC=BC,AE=CF,求证:DE平行BF
如图:AD//BC,AD=BC,AE=CF.求证:(1)DE=DF,
如图,已知AD=CB,AE=CF,DE=BF,求证AB=CD.
如图,已知AD=CB,AE=CF,DE=BF,求证:AB∥CD