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兴趣小组的同学要测量树的高度.在阳光下,一名同学测得一根长为1米的竹竿的影长为0...
兴趣小组的同学要测量树的高度.在阳光下,一名同学测得一根长为1米的竹竿的影长为0.4米,同时另一名同学测量树的高度时,发现树的影子不全落在地面上,有一部分落在教学楼的第一级台阶上,测得此影子长为0.2米,一级台阶高为0.3米,如图所示,若此时落在地面上的影长为4.4米,则树高为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101323613225951/SYS201311031013236132259014_ST/images0.png)
A.11.5米
B.11.75米
C.11.8米
D.12.25米
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