如图,AC⊥AB,AD⊥AE,且AB=AC,AD=AE,探究BD与CE的关系,并说明理由.

如图9,AD//BC,AE⊥AD且AE=AD,AF⊥AB且AF=AB.则AC与EF是否相等?为什么? 如图,AD∥BC,AD=BC,AE⊥AD,AF⊥AB,且AE=AD,AF=AB,求证：AC=EF. 如图,在三角形ABC中,AM是中线,其中AB⊥AE,AD⊥AC,且AB=AE,AC=AD,求证'AM⊥DE 如图,已知AB=AC,AB⊥AC,AD⊥AE且∠ABD=∠ACE,求证AD=AE 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,AC⊥AB,AD⊥AE,且AB=AC,AD=AE,探究BD与CE的关系,并说明理由. 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,AD⊥AE,AB垂直AC,AD=AE,AB=AC,AD⊥AE ,AB=AC,求证：三角形ABD≌三角形ACE 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. 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. 如图,△ABC中,AB=AC,AD⊥BC于D,BE交AD于F且AE=AF,求证:2AD=AB+A如图,△ABC中,AB=AC,AD⊥BC于D,BE交AD于F且AE=AF, 求证:2AD=AB+AF 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=AE,AC=AD,AC⊥AD,AB⊥AE.求证：ED⊥BC. 如图AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证:△DAC≌三角形EAB 如图,点C在线段BE上,AB⊥AC,AD⊥AE,且AD=AE,连接CD,试说明DC⊥BE 如图,△ABC为等腰直角三角形,AB=AC,AD⊥AE,且AD=AE,请问△ACD与△ABE全等吗?为什么? 如图,DE//BC,请问AD:AC=AE:AB?AD:AE=AB:AC?