如图,AB=AC,AD=AE,BE=CD,(1)求证:∠BAC=∠EAD;(2)求证∠BDC=∠EAD
如图,AB=AC,AD=AE,BE=CD,(1)求证:∠BAC=∠EAD;(2)求证∠BDC=∠EAD
如图,AB=AC,AD=AE,BE=CD,(1)求证:∠BAC=∠EAD; (2)写出∠1、∠2、∠3之间的数量关系,并
已知,如图ABCD,且AD=AB,CD的延长线上有一点E,AE⊥BE,且AE=BE.求证:∠ BAD=2∠ EAD
已知:如图,AB=AD,AC=AE,∠CAE=∠BAD.求证△EAD≌△CAB
如图,已知AB//CD,AD//BC,求证:∠EAD=∠CBD+∠CDB.
如图,已知AB=AC,AD=AE,∠EAD=∠CAB,BD与CD相较于点O,求证说明:BD=CE.
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)
三角形ABC中AB大于AC,AD垂直BC于D,AE平分∠BAC.求证∠EAD=二分之一(∠C-∠B)
如图,AB=AC,AD=AE,BD=CE,BD与CE相交于点O.求证:∠CAB=∠EAD=∠BOC
如图,AB=AC,AD=AE,BD=CE,BD与CE相交与O.求证:∠CAB=∠EAD=∠BOD.
如图,在△ABC和△ADE中,AC=AB,AE=AD,∠CAB=∠EAD.求证CE=BD
如图 AB=AC AD=AE BD=CE,BD与CE相交于点O.求证∠BOC=∠EAD