ab=ac AD⊥bd ae⊥ce ad=ae 说明ob=oc
如图,在△ABC中,AB=AC,AD⊥BD,AE⊥CE,且AD=AE,BD和CE交于点O,请说明OB=OC
如图,在△ABC中,AB=AC,AD⊥BD,AE⊥CE,且AD=AE,BD和CE交于点O,请说明OB=OC的理由.
已知AB/AD=AC/AE=BC/DE.试说明AD*CE=BD*AE
直角三角形全等的判定如图,在△ABC中,AB=AC,AD⊥BD,AE⊥CE,且AD=AE,BD和CE交与点O,请说明OB
已知:如图5,AE⊥AB,AD⊥AC,BD=CE,BD⊥CE于O,试说明:AE=AB.
已知AB/AD=AC/AE=BC/DE,试说明AB*CE=AC*BD
如图,AE⊥AB,AD⊥AC,AB=AE,∠B=∠E,猜想BD与CE的位置关系,说明理由.
如图所示,已知AB=AC,AD=AE,请说明BD=CE
如图,已知AB=AC,AD=AE,试说明:BD=CE.
ab⊥ac.ad⊥ae .ab=ac .ad=ae .说明 be⊥cd
急 已知AB⊥AC,AD⊥AE,AB=AC,AD=AE.求证1)△BAD≌△CAE 2)BD⊥CE
如图,AC⊥AB,AD⊥AE,且AB=AC,AD=AE,探究BD与CE的关系.