a:b:c=2:3:4,设a=2x,b=3x,c=4x.
设三角形面积为S.
则aha=bhb=chc=2S,
ha=2S/a,hb=2S/b,hc=2S/c,
ha:hb:hc=2S/a:2S/b:2S/c=1/a:1/b:1/c
=1/2x:1/3x:1/4x=1/2:1/3:1/4=6:4:3.
a:b:c=2:3:4,设a=2x,b=3x,c=4x.
设三角形面积为S.
则aha=bhb=chc=2S,
ha=2S/a,hb=2S/b,hc=2S/c,
ha:hb:hc=2S/a:2S/b:2S/c=1/a:1/b:1/c
=1/2x:1/3x:1/4x=1/2:1/3:1/4=6:4:3.