AB=AC ∠ABD=∠ACE,求证OB=OC,BE=CD,D在AC上,E在AB上,BD交CE与O,抱歉插不了图

已知：如图,AB=AC,∠ABD=∠ACE,BD与CE相交于O点.求证：OB=OC 如图AB/AD=BC/DE=AC/AE,求证∠ABD=∠ACE AB=AC ∠ABD=∠ACE,求证OB=OC,BE=CD,D在AC上,E在AB上,BD交CE与O,抱歉插不了图 在三角形ABC中,AB=AC,点D,E分别在边AC,且∠ABD=∠ACE,BD,CE相交于点O,求证OB=OC,BE=CD ∠BAC=∠DAE,∠ABD=∠ACE,DB=EC,求证:AB=AC,AD=AE 如图,∠BAC=∠DAE,∠ABD=∠ACE,BD=CE.求证：AB=AC 如图 ∠BACO=∠DAE,∠ABD=∠ACE,BD=CE.求证;AB=AC 如图,已知AB=AC,∠ABD=∠ACE,∠BAC=∠DAE求证：BD=CE... 已知,如图,AB=AC,AD=AE,∠1=∠2.求证：△ABD≌△ACE. 如图,已知：AB=AC、AD=AE、∠1=∠2.求证：△ABD≌△ACE. 已知,如图,AB/AD=BC/DE=AC/AE 求证；∠ABD＝∠ACE 已知:如图,在△ABC中,AB=AC,点D,E分别在边AC,AB上,且∠ABD=∠ACE,BD与CE相交于点O,求证OB=OC答案是∵AB=AC∴角ABC=角ACB∵角ABD=角ACE∴角OBC=角OCB∴OB=CD请写出答案原因 如图,已知AB=AC,AB⊥AC,AD⊥AE且∠ABD=∠ACE,求证AD=AE D为△ABC内一点,E为△ABC外一点,且满足AB／AD=BC／DE=AC／AE 求证1 △ABD∽△ACE ,2 ∠ABD=∠ACE 以△ABC的AB、AC边为斜边相三角形外作直角三角形ABD和ACE,且使∠ABD=∠ACE,M是BC的中点,求证：DM=EM 如图,以△ABC的AB、AC为斜边向外作直角三角形ABD和ACE,且使∠ABD=∠ACE,M是BC中点,求证：DM=EM 如图,以△ABC的AB、AC边为斜边向外做RT△ABD和RT△ACE,且使∠ABD=∠ACE,M是BC中点,求证：DM=EM 如图,以△ABC的边AB、AC为斜边在△ABC外作Rt△ABD和Rt△ACE,且∠ABD=∠ACE,M是BC的中点,求证：MD=ME