如图,AB=AC,AD = AE,CD=BE．求证：∠DAB=∠EAC．

如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD 如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证BE⊥CD 如图,已知AE⊥AD,AF⊥AB,AB//CD,AE=CD,AE=AD,AF=CD,求证AC=EF 如图,已知AB垂直AC,AD垂直AE,AB=AC,AD=AE,求证BE=CD且BE垂直CD.图在后面. 如图,已知AB垂直AC,AD垂直AE,AB=AC,AD=AE,求证BE=CD且BE垂直CD.图在后面. 如图,已知AB垂直AC,AD垂直AE,AB=AC,AD=AE,求证BE=CD且BE垂直CD. 已知,如图,AB⊥AC,AB=AC,AD⊥'AE,AD=AE,求证:(1)BE=CD;(2)BC⊥CD急!帮个忙呗! 已知；如图,ab=ac,bd=ce,ad=ae.求证be=cd. 如图,三角形ABC中,AB=AC,AD=AE,证明:BE=CD 如图：已知：AB=AC,AD=AE,求证BO=CD可以做辅助线 如图,已知AB=AE,BC=ED,AC=AD,求证:BE平行CD 如图,AB‖CD,AD‖BC,AE⊥AB,AF⊥AD,AE=AB,AF=AD,试说明AC=EF 如图,DE//BC,请问AD:AC=AE:AB?AD:AE=AB:AC? 如图,AE垂直于AD,AF垂直于AB,AB平行于CD,AE=AD,AF=CD,求证：AC=EF 如图,已知AE⊥AD,AF⊥AB,AB∥CD,AF=CD,AE=AD,求证：AC垂直EF. 如图,已知AB⊥AC,AD⊥AE,且AB=AC,AD=AE.BE和CD的位置关系如何?并说明理由 如图,已知AB垂直于AC,AD垂直于AE,且AB=AC,AD=AE,说明BE与CD的位置关系 如图,已知AB⊥AC,AD⊥AE,且AB=AC,AD=AE,BE与CD的位置关系如何?