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如图,边长为的正△ABC,点A与原点O重合,若将该正三角形沿数轴正方向翻滚一周,...
如图,边长为
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102458339006235/SYS201311031024583390062020_ST/0.png)
的正△ABC,点A与原点O重合,若将该正三角形沿数轴正方向翻滚一周,点A恰好与数轴上的点A′重合,则点A′对应的实数是
.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103102458339006235/SYS201311031024583390062020_ST/images1.png)
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