点D,E在三角形ABC的边BC上,AB=AC,AD=AE.求
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
已知:点D、E在三角形ABC的边BC上,AB=AC,AD=AE,求证:BD=CE
如图,点D,E在三角形ABC的边BC上,AB=AC,AD=AE.求证BD=CE
如图,点D,E在三角形ABC的边BC上,AB=AC,AD=AE.求证BD=CE.
如图所示已知点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BD=CE.(不能用证明三角形全等证明
如图,点D.E在三角形ABC的边BC上,AB=AC,AD=AE,试说明BD=CE
已知:如图,点D,E在三角形ABC的边BC上,AD=AE,角BAD=角CAE 求证:AB=AC 要
如图,点D,E在三角形ABC的边BC上.若AD=AE,BD=CE,则AB=AC.请说明理由.
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