如图,已知AD=AE,AC=AB∠A=40°,∠B=35°,求∠EOC的度数

如图,已知AD/DB=AE/EC,求证 :AD/AB=AE/AC. 已知:如图,AC/AD=AB/DE=BC/AE.求证AB=AE 已知,如图,AD/AC=DE/AB=AE/BC,求证AB=AE 已知,如图,AD:AC=DE:AB=AE:BC 求证：AB=AE 如图,已知：AB=AE,AC=AD,AC⊥AD,AB⊥AE.求证：ED⊥BC. 如图,已知,AD=AE,AB=AC.试说明∠ABE=∠ACD 如图,DE//BC,请问AD:AC=AE:AB?AD:AE=AB:AC? 如图,已知AB=AC,AB⊥AC,AD⊥AE且∠ABD=∠ACE,求证AD=AE 已知:如图,AD/AB=AE/BC求证：AD/AE=DB/EC和AB/DB=AC/EC 已知:如图,AD/AB=AE/BC求证：AD/AE=DB/EC和AB/DB=AC/EC 如图,已知AB=AC,AD=AE,∠1=∠2,说明∠3=∠4 如图,已知AB=AC,AD=AE,∠1=∠2.说明∠3=∠4 已知:如图,∠1=∠2,∠3=∠4,AC=AB,求证:AE=AD 已知如图AB=AC,求证AB²=AD×AE 已知：如图4—5,AB⊥AE,AD⊥AC,∠E=∠B,DE＝CB.求证：AD=AC 初三放缩与相似性已知：如图,线段BD与CE相交于点A,AD:BD=AE:CE求证：AB:AC=AD:AE 如图,已知AD//BC,AD=BC,AE⊥AD,AF⊥AB,AE=AD,AB=AF.求证：AC=EF. 已知：如图,在△ABC中,AD平分∠BAC,DE‖AC交AB于点E,求证：AE：AB+AE：AC=1