解题方法
1 . 已知正四棱台
上、下底面的边长分别为4、10,侧棱长为6.求正四棱台的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2020/9/1/2540624199909376/2541082543579137/STEM/7853386e-9c86-4a48-97c0-9f810c482bbb.png)
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2 . 已知正四棱台
上、下底面的边长分别为4、10,侧棱长为6.
![](https://img.xkw.com/dksih/QBM/2020/4/26/2449798188097536/2450002651832320/STEM/12427ab80e634b70a3bf6813711b42fd.png?resizew=278)
(1)求正四棱台的表面积;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2020/4/26/2449798188097536/2450002651832320/STEM/12427ab80e634b70a3bf6813711b42fd.png?resizew=278)
(1)求正四棱台的表面积;
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51bf5b9fa4c861b5049c3d8ff9efb990.png)
您最近一年使用:0次