如图,在矩形ABCD中,点E,F分别在边AD,DC上,BE⊥EF,AB=3,AE=4,DE=1,求证：△ABE∽△DEF

如图,在矩形ABCD中,点E,F分别在边AD,DC上,BE⊥EF,AB=3,AE=4,DE=1,求证：△ABE∽△DEF

∵BE⊥EF
∴∠AEB+∠DEF=90°
∵∠AEB+∠ABE=90°,∠DEF+∠DFE=90°
∴∠AEB=∠DFE,∠ABE=∠DEF
∴△ABE∽△DEF