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=AE.求证BE=CE...
AB=AC,所以∠B=∠C,AD=AE,所以∠ADE=∠AED,所以△ABE与△ACD全等,所以BE=DC
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.
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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