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,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⊥AC,AD⊥AE,且AB=AC,AD=AE,BE与CD的位置关系如何? 如图,已知AB=AC,AB⊥AC,AD⊥AE且∠ABD=∠ACE,求证AD=AE 如图,已知：AB=AE,AC=AD,AC⊥AD,AB⊥AE.求证：ED⊥BC. 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,已知AB⊥AC,AD⊥AE,且AB=AC,AD=AE,说明△ABE全等于△ACD BE和CD的位置关系如何用外角的性质做 步骤后面带理由 如图,已知AD//BC,AD=BC,AE⊥AD,AF⊥AB,AE=AD,AB=AF.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,AC⊥AB,AD⊥AE,且AB=AC,AD=AE,探究BD与CE的关系,并说明理由. 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,已知AE⊥AD,AF⊥AB,AB//CD,AE=CD,AE=AD,AF=CD,求证AC=EF 如图,已知AB是圆O的直径,CD⊥AB,垂足为D,AE⊥AB,且AE=AC,BE交圆O于点F.求证:EF·EB=AD·AB 如图,已知AB是⊙O的直径,CD⊥AB,垂足为D,AE⊥AB,且AE=AC,BE交圆O于点F 求证：EF·EB=AD·AB 如图,已知AB是⊙O的直径,CD⊥AB,垂足为D,AE⊥AB,且AE=AC,BE交圆O于点F 求证：EF·EB=AD·AB 如图,已知：AD是△ABC的中线,AE⊥AC,AF⊥AB,且AE＝AC,AF＝AB试判断AD与EF的关系,并说明理由