1 . 在如图的多面体
中,四边形
是边长为
的菱形,且
,
,
,
平面
.
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862203387904/1572862209474560/STEM/361dcd9a176641f99160d7d8da640956.png)
(Ⅰ)在
上是否存在点
,使得
平面
,请证明你的结论;
(Ⅱ)求该多面体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c856cef242a8fb7a567d55a3a29b1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a8af4f6147e9d182aed3323cc81616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27fcafd4e3c295eed2ab9c92c3d4a36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9d7754d55614605fe19496370a5313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2016/7/1/1572862203387904/1572862209474560/STEM/361dcd9a176641f99160d7d8da640956.png)
(Ⅰ)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1399e7ae0b2decaafc62a5cdffb15522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(Ⅱ)求该多面体的体积.
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2016-12-04更新
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4卷引用:2016届贵州省都匀一中高三第十次月考文科数学试卷