设三条边位2x,3x,4x,高分别为h1,h2,h3 三角形面积S=2x*h1/2=3x*h2/2=4x*h3/2 h1=S/x,h2=2S/3x,h3=h/2x h1:h2:h3=1:2/3:1/2=6:4:3
