如图,AB=AC,AD=AE.求证:∠B=∠C.
如图,AB=AC,AD=AE.求证:∠B=∠C.
如图,D在AB上,E在AC上,AB=AC,∠B=∠C,求证:AD=AE.
已知:如图∠DAE=∠BAC,AB=AC,∠B=∠C求证:AD=AE
如图,AB=AC,AD=AE,求证角B=角C
如图,∠BDA=∠CEA,AE=AD.求证:AB=AC.
如图,AB=AC,AD=AE.求证:角B等于角C
已知如图,AE=AC,∠E=∠C,∠EAB=∠CAD,求证:AB=AD
如图,AB=AD,AC=AE,∠BAE=∠DAC.求证:∠C=∠E.
(1)如图,已知∠BAC=∠DAE,AB=AC,AD=AE,求证:∠B=∠C,BD=CE
如图,已知AB>AC,AD⊥BC,AE平分∠BAC,求证:∠DAE=1/2(∠C-∠B)
如图,△ABC中,AB>AC,AD、AE分别是△ABC的高和角平分线.求证:∠EAD=1/2(∠C-∠B)
如图,已知AB=AD,AC=AE,∠1=∠2,求证∠ADE=∠B