已知如图,AE=AC,AB=AD,∠EAB=∠CAD,试说明:∠B=∠D图：

已知如图DA垂直于AB,EA垂直于AC,AB=AD,AC=AE求DC=BEDG垂直BE 如图,ad垂直于ab,ea垂直于ac,ab=ad,ac=ae,be和cd相交于o,求证：oa平分角doe. 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,DA垂直AB,EA垂直AC,AB=AD,AC=AE,BE和CD相交于O,则角DOE的度数是多少? 如图,DA垂直AB,EA垂直AC,AB=AD,AC=AE,BE和CD相交于O,则角DOE的度数为 如图,已知,AD=AE,AB=AC.试说明∠ABE=∠ACD 如图,AD⊥AB,EA⊥AC,AB=AD,AC=AE,BE和CD相交于O,(1)求∠DOE的度数；（2）求证：OA平分∠DOE 如图,AD⊥AB,EA⊥AC,AB=AD,AC=AE,BE和CD相交于O,(1)求∠DOE的度数；（2）求证：OA平分∠DOE 如图,AD⊥AB,EA⊥AC,AB=AD,AC=AE,BE和CD相交于O,求证：OA平分∠DOE这是有关角平分线的,不要用共圆! 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 DA⊥AB EA ⊥AC AB=AD AC=AE 求证 DC=BE 如图,DE//BC,请问AD:AC=AE:AB?AD:AE=AB:AC?