如图,AB=AC ,AD=AE ,BE 与CD 相交于点O,求证AO垂直于B C

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. 如图,DE//BC,请问AD:AC=AE:AB?AD:AE=AB:AC? 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=AE,BC=ED,AC=AD,求证:BE平行CD 如图,已知：AB⊥AC,AD⊥AE,AB=AC,AD=AE,说明BE=DC的理由 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! 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? 如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE,求证:(1)△DAC≌△EAB;(2)BE⊥CD. ,の 如图,AB⊥AC,AD⊥AE,AB=AC,AD=AE,已知△DAC≌△EAB.求证BE⊥CD 如图,在三角形ABC中,AD垂直AB,AD=AB,AE垂直AC,AE等于AC.求证：BE=CD. 如图,直角梯形ABCD,CD‖AB,AB=AC,AE⊥AC,且AE=AD,连BE交AC于F,求证：BF=EF.