一个三棱柱的底面是边长3的正三角形,侧棱垂直于底面,它的三视图如图所示,
.
(1)请画出它的直观图;(2)求这个三棱柱的表面积和体积.
![](https://img.xkw.com/dksih/QBM/2013/12/27/1571440749641728/1571440754851840/STEM/d5890de3be1f483289ac2c7137aed8c6.png)
(1)请画出它的直观图;(2)求这个三棱柱的表面积和体积.
![](https://img.xkw.com/dksih/QBM/2013/12/27/1571440749641728/1571440754851840/STEM/fb01221166cc48139c5c53bc91c51e65.png)
11-12高一下·吉林长春·期末 查看更多[2]
更新时间:2016-12-02 14:47:18
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【推荐2】某高速公路收费站入口处的安全标识墩如图4所示,墩的上半部分是正四棱锥P-EFGH,下半部分是长方体ABCD-EFGH.图5、图6分别是该标识墩的正(主)视图和俯视图.
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【推荐1】如图,在五面体
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