解答题-证明题 适中0.64 引用2 组卷549
如图,在底面为平行四边形的四棱柱
中,![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/459499c9977d42909410f364a4eb72a8.png)
底面
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/9107e00a58c44b05a907ab5879f418ad.png)
(Ⅰ)求证:平面
平面
;
(Ⅱ)若
,求四棱锥
的体积.
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/59f15fec45f24b359a0221da7b20c67a.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/459499c9977d42909410f364a4eb72a8.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/a18bbc3b47244a25a2c03e0d6e665926.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/5c07416e66e741779181e3f5c9a8372b.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/e249dd563ef34fb581b4af5dd52c70fe.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/fc4cb58e7a4b44b4838a9fcda45d4ea0.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/9903e9b85f164b278df2bc1f13938266.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/9107e00a58c44b05a907ab5879f418ad.png)
(Ⅰ)求证:平面
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/93c6159590a04549860e97c952dcc4e9.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/2c943e5126834979a4822db0248c06e6.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/e5d57afadc30465d809a894a70ae2908.png)
![](https://img.xkw.com/dksih/QBM/2013/12/31/1571450665197568/1571450670792704/STEM/643f107316ab4752a0dd75f1458899a5.png)
12-13高三·广东·阶段练习
类题推荐
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网