如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE

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如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE如图,点D,E在△ABC的边BC上,AB=AC,AD

如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE
如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE

如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE
AB=AC
B=C
AD=AE ADE=AEC
ADB=AEC B=C AB=AC
ABD==AEC
BD=EC
BE=CD

正△ABC和正方形DEFG如图放置,点E,F在边BC上,点D,G分别在边AB,AC上,求BC:EF. 正△ABC和正方形DEFG如图放置,点E.F在BC上,点D,G分别在边AB,AC上.求BC:EF. 如图,△ABC中,点D在AB上,点E在AC上.请你在BC上确定一点F,使△DEF的周长最小. 如图,在△ABC中,AB=AC,点D是BC的中线,点E在AD上.请说明AD⊥BC 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) 如图,已知△ABC是边长为6的等边三角形,点O在边AB上,圆O过点B且分别与AB,BC相交于点D,E,过点E如图,已知△ABC是边长为6的等边三角形,点O在边AB上,圆O过点B且分别与AB、BC相交于点D、E,过点E的切线 如图,点D、E在△ABC的边BC上,AB=AC,∠BAD=∠CAE,△ADE是等腰三角形吗? 解一道初一数学题如图,点D、E在△ABC的边BC上.AD=AE,BD=EC,试说明:AB=AC 已知:如图,点D、E在△ABC的边BC上,AD=AE,∠BAD=∠CAE.求证:AB=AC 如图4,已知点D、E在△ABC的边BC上,AB=AC,AD=AE,求证:BD=CE 如图,点D,E在△ABC的边BC上,AB=AC,BD=CE,求证:AD=AE. 已知:如图,点D、E在△ABC的边BC上,AD=AE,∠BAD=∠CAE.求证:AB=AC 已知:如图,点D、E在△ABC的边BC上,AD=AE,∠BAD=∠CAE.求证:AB=AC【用三线合一】 如图,点D,E在△ABC的边BC上,若AD=AE,BD=CE.则AB=AC,请说明理由. 已知:如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证:BD=CE 如图,已知点D,E在△ABC的边BC上,AB=AC,AD=AE.求证:BD=CE 如图,△ABC的面积为1,点D、G、E和F分别在边AB、AC、BC上,BD 如图,点D,E在△ABC的边BC上,AB=AC,AD=AE.求证BE=CE