1.点D,E在△ABC的边BC上,AD=AE,BD=EC.求证:AB=AC.
点D.E在△ABC的边BC上,AD=AE,BD=EC,求证:AB=AC
1.点D,E在△ABC的边BC上,AD=AE,BD=EC.求证:AB=AC.
已知点D、E在△ABC的边BC上,AD=AE,BD=EC.求证:AB=AC.
三角形abc,d,e为bc上的点,且bd=ec,求证ab+ac大于ad+ae
点D E在三角形ABC的边BC上 AB=AC AD=AE 求证BD=CE
点D,E在三角形ABC的边BC上,AB=AC,AD=AE,求证BD=CE
点D、E在三角形ABC的边BC上,AB=AC,AD=AE,求证,BD=CE
如图,D,E是△ABC的边BC上的两点,且BD=EC,求证:AB+AC=AD+AE
如图,在△ABC中,AB>AC,D,E分别在AB,AC上,且AD=AE,直线DE与BC的延长线交于点P,求证BD/EC=
如图,点D,E在△ABC的边BC上,BD=CE,AD=AE,求证:AB=AC(不要用全等的解法)
点D、E在△ABC的边BC上,AB=AC,AD=AE,BD=CE 求证 △ABF≌△ACD
如图所示,点D.E在△ABC的边BC上,AB=AC,AD=AE,BD=CE.求证:△ABE≌△ACD