如图,DE⊥AB于E,DF⊥AC于F,若BD=CD、BE=CF,求证：AD平分∠BAC

如图,DE⊥AB于E,DF⊥AC于F,DE=DF,求证AE=AF图片 如图,DE⊥AB于E,DF⊥AC于F,AE=AF,求证：DE=DF 如图,△ABC中,AB=AC,AD⊥BC于D,DE⊥AB于E,DE⊥AC于F,求证DE=DF. 如图,AB=AC,BD=CD,DE⊥AB于E,DF⊥AC于F,求证DE=DF, 如图,AB=AC,BD=CD,DE⊥AB于点E,DF⊥AC于点F.求证:DE=DF 如图,AB=AC,BD=CD,DE⊥AB于点E,DF⊥AC于点F.求证DE=DF 如图,AB=AC,BD=CD,DE⊥AB于点E,DF⊥AC于点F.求证：DE=DF. 如下图,在△ABC中,AD⊥BC于D,DF⊥AB于F,DE⊥AC于E,DF=DE 求证：AB=AC 如下图,在△ABC中,AD⊥BC于D,DF⊥AB于F,DE⊥AC于E,DF=DE 求证AB=AC 已知：如图,AB=AC,BD=CD,DE⊥AB于E,DF⊥AC于F.求证：DE=DF.已知:如图,AB=AC,BD=CD,DE⊥AB于E,DF⊥AC于F.求证:DE=DF. 火速!已知:如图,AD是BC的垂直平分线,DE⊥AB于点E,DF⊥AC于点F.求证:DE=DF 已知:如图,AD是BC的垂直平分线,DE⊥AB于点E,DF⊥AC于点F.求证:DE=DF 已知,如图AB=AC,BD=DC,DE⊥于E,DF⊥于F求证:DE=DF 如图,△ABC中,AB=AC,D在BC上,DE⊥AB于E,DF⊥AC于F,BG⊥AC于G,求证,ED+ED=BG如图,△ABC中,AB=AC,D在BC上,DE⊥AB于E,DF⊥AC于F,BG⊥AC于G,求证,ED+DF=BG 如图,在△ABC中,AD⊥BC于D,DE⊥AB于E,DF⊥AC于F,说明AE*AB=AF*AC 已知如图 △ABC中,AD⊥BC于D DE⊥AB于E DF⊥AC于F 求证 AE:AF=AC:AB 如图,△ABC中,AB=AC,DE⊥AB于点E,DF⊥AC于点F,若DE=DF,求证:∠BAD=∠CAD 如图,在△ABC中,AB=AC,D是BC上任意一点,DE⊥AB于E,DF⊥AC于F,BM⊥AC于M.求证：DE+DF=BM.