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1 . 如图,在四棱锥S﹣ABCD中,底面ABCD是边长为2的正方形,SA=SB=SC=SD
,点E,M,N分别是BC,CD,SC的中点,点P是MN上的一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/8553bee1-319d-458e-bb43-7991d11784e3.png?resizew=216)
(1)证明:EP∥平面SBD;
(2)求四棱锥S﹣ABCD的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bc17c57b165bf77695fd243ed6f955.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/8553bee1-319d-458e-bb43-7991d11784e3.png?resizew=216)
(1)证明:EP∥平面SBD;
(2)求四棱锥S﹣ABCD的表面积.
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2020-01-14更新
|
328次组卷
|
4卷引用:贵州省镇远县文德民族中学校2020-2021学年高二11月月考数学试题
名校
2 . 如图,已知四棱锥
的底面
是边长为2的正方形,
底面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/482696e5-73b1-4e77-8700-17e020954aeb.png?resizew=172)
(1)求直线
与平面
所成的角的大小;
(2)求四棱锥
的侧面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bec03e804f0cea1db5cde2aa185056a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/482696e5-73b1-4e77-8700-17e020954aeb.png?resizew=172)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
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2019-11-06更新
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383次组卷
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4卷引用:上海市第二中学2018-2019学年度高二下学期期末数学试题
名校
3 . 已知正四棱锥的底面边长为2,高为3,则正四棱锥的侧面积为________ .
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4 . 一个高为
的正三棱锥的底面正三角形的边长为3,则此正三棱锥的表面积为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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5 . 如图,已知四棱锥
的底面
是边长为2的正方形,
底面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/dbc28cf3-d473-4b72-8ae5-d6ea5bb5f4d1.png?resizew=202)
(1)求直线
与直线
所成的角的大小;
(2)求四棱锥
的侧面积;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bec03e804f0cea1db5cde2aa185056a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/dbc28cf3-d473-4b72-8ae5-d6ea5bb5f4d1.png?resizew=202)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
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6 . 正三棱锥
的底面边长为2,高为1,则该三棱锥的表面积是____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
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7 . 若某多面体的三视图如图所示,则此多面体的表面积是____ ,体积是____
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/7d7ae9fb-5592-4c73-b182-6609c4e9e67d.png?resizew=157)
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解题方法
8 . 某几何体的三视图如图所示,则该几何体的表面积为
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/6a68a39e-aaab-43d6-8bf1-6f4398b2e120.png?resizew=184)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/6a68a39e-aaab-43d6-8bf1-6f4398b2e120.png?resizew=184)
A.44 | B.![]() | C.![]() | D.![]() |
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名校
9 . 如图,正方体
的棱长为
,连
得到一个三棱锥.求:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/12af9d69-264f-459f-9889-91822a194f62.png?resizew=162)
(1)三棱锥
的表面积与正方体的表面积之比;
(2)三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f814ad10340c53212e37ce5e0e08b357.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/12af9d69-264f-459f-9889-91822a194f62.png?resizew=162)
(1)三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051b04e61a2766706023d76088fd0735.png)
(2)三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051b04e61a2766706023d76088fd0735.png)
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2020-01-01更新
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394次组卷
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5卷引用:山西省太原市师范学院附属中学2017-2018学年高二上学期第一次月考数学(理)试题
10 . 已知正四棱锥
中,底面边长为2,高为
,则此正四棱锥
的侧面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02bd5cfe804460846423e77f72db10f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02bd5cfe804460846423e77f72db10f.png)
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