已知:如图,AD=AE,BD=CE,∠ADB=∠AEC,求证:△ABE≌△ACD.
如图,在△ABC中,AD=AE,BD=CE,∠ADB=∠AEC=105度
如图,已知AD=AE,∠BDO=∠CEO,求证:△ABE≌ACD
已知:如图,AB=AC,AD=AE,BD=CE 求证:△ABD≌△ACE;△ABE≌△ACD
如图,点DE在BC上,BD=CE,AB=AC,AD=AE,求证△ABE≌△ACD
已知:如图,AB=AC,AD=AE.求证:△ABE≌△ACD
如图,AB平行AC,∠BAD=∠CAE,AD=AE,求证:△ABE≌△ACD.(SAS)
如图,AB平行AC,∠BAD=∠CAE,AD=AE,求证:△ABE≌△ACD.
已知,如图11-26.AB=AC,AD=AE,∠1=∠2.求证△ABE≌△ACD,
已知:如图,AB‖CD,AE平分∠CAB,CE平分∠ACD,AE交CE于点E.求证:∠AEC=90°
如图AB=AC,AD=AE,∠1=∠2求证:△ABE=△ACD
如图所示,点D.E在△ABC的边BC上,AB=AC,AD=AE,BD=CE.求证:△ABE≌△ACD
证明题 1.如图,已知AB=AC ,BD=CE.求证:△ABE≌(全等三角形的符号)△ACD