1 . 已知三棱锥
的底面
是正三角形,侧面
底面
,且
,
,若该三棱锥的外接球的表面积为
,则AB的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78307cd417504554a4e2276fe24d1162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3e071c0b3d4c83a132c07854db990a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1251cc6a42c9ece8ea94baacd0bfa173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d559c89eb42798e31fdca19eafc3a582.png)
A.3 | B.4 | C.6 | D.8 |
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解题方法
2 . 如图,在四棱锥
中,底面
为菱形,E,F分别为SD,BC的中点.
(1)证明:
平面
;
(2)若平面
平面
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/31/202704ce-62ea-468c-8ea4-ba33f564d7c1.png?resizew=155)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877582b5387278008d14fe5932622fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26eba7e649fade39fd2d0b6ef4ac5ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b81d3ca9ce00bb0669e7ce5620d68e8f.png)
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3 . 如图,网格纸上绘制的是一个几何体的三视图,网格小正方形的边长为1,则该几何体的体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/23/b0d6bce2-519d-4c9f-ad09-339619f4e534.png?resizew=180)
A.![]() | B.1 | C.![]() | D.4 |
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4 . 在直三棱柱
中,
,则直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5de0e0a4d71f8625392a2be8fd18449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 设
是两条不同的直线,
是两个不同的平面,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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7卷引用:四川省泸县第一中学2023-2024学年高二上学期开学考试数学试题
四川省泸县第一中学2023-2024学年高二上学期开学考试数学试题四川省成都市成华区2022-2023学年高一下学期期末数学试题辽宁省沈阳市第一二〇中学2023-2024学年高二上学期期初考试数学试题新疆维吾尔自治区喀什地区巴楚县2023-2024学年高二上学期9月月考数学试题(已下线)考点巩固卷17 空间中的平行与垂直(八大考点)广东省茂名市信宜市华侨中学2023-2024学年高二下学期段考一(4月)数学试题(已下线)专题04空间点、直线、平面的位置关系与空间直线、平面的平行-期末真题分类汇编(新高考专用)
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6 . 如图,在长方体
中,
,M,N分别为棱
,
的中点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce34c05c1445e027e9fc009907046e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/16/d66eacc5-2984-461e-991a-96742b443fff.png?resizew=170)
A.M,N,A,B四点共面 |
B.直线![]() ![]() |
C.直线![]() ![]() ![]() |
D.平面![]() ![]() ![]() |
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3卷引用:四川省泸县第一中学2023-2024学年高二上学期开学考试数学试题
四川省泸县第一中学2023-2024学年高二上学期开学考试数学试题四川省成都市府新区2022-2023学年高一下学期期末数学试题(已下线)第一章 点线面位置关系 专题五 共面问题 微点2 立体几何共面问题的解法综合训练【培优版】
7 . 在平面四边形
中(如图1),
,
,
,E是AB中点,现将△ADE沿DE翻折得到四棱锥
(如图2),
平面
;
(2)图2中,若F是
中点,试探究在平面
内是否存在无数多个点
,都有直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
平面
,若存在,请证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb52f9b226b1db3f6f9f055948bd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995f8d5c1e57b541c10f7c29645add31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec43f7352b3a8c194b4c37485fb4ffd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4a6b8ef3e79b4482388c3391d8b18.png)
(2)图2中,若F是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a9b32570d553161be04d13954e92a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
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解题方法
8 . 在直三棱柱
中,
,
,四棱锥
体积为
,则直三棱柱
的外接球的体积为____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b5572c47e668b91304867b9988c7a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a0c82028e1259f300facd32775a15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/15/b830fa26-d3db-40b2-810d-f889ed2a3b98.png?resizew=122)
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9 . 如图,在长方体
中,
,
分别为棱
,
的中点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97315b1fc75dc5bb8569d6fcb2cd668f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/15/625550f8-8404-4517-8181-c2b6be63bf09.png?resizew=168)
A.四点![]() |
B.直线![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
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解题方法
10 . 如图,在四棱柱
中,
平面
,
,
,
,
为棱
上一动点,过直线
的平面分别与棱
,
交于点
,
,则下列结论正确的是______ .
对于任意的点
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6cf581aa9602fd1f47ff0fd9292d321.png)
对于任意的点
,四边
不可能为平行四边形
当
时,存在点
,使得
为等腰直角三角形
存在点
,使得直线
平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd694ad3a4733c7c84aaa7946aeea4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326a3339175592bd1e793a9054d57fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31592debc5e64c63e32aadb800033a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbcc34f6ccb142cc9198aa7169d4e0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deae2b8fc8c0f4f049ce20c881fb2e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094e639c2b31dc54b1b3e6456e77843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128147bd4834566a78b4e9d2a3b2139c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c5b6dfff10cb3dc3e06509db56d7b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd8089bf8a278810573965bc1fb919b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6cf581aa9602fd1f47ff0fd9292d321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30159541e722542927a72056d89915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea45e0eee8eff53b6f3015a4ff3aa0d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c559d71714a176e5581c9da57503f1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8b8edd94bc4d5d517ec77e56800e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a6b190811e7735c33b1177ba2c0de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30159541e722542927a72056d89915.png)
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5卷引用:四川省泸县第一中学2023届高三三诊模拟考试理科数学试题
四川省泸县第一中学2023届高三三诊模拟考试理科数学试题四川省泸县第一中学2023届高三三诊模拟考试文科数学试题(已下线)专题10 空间向量与立体几何-3(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点2 空间直线平行的判定与证明综合训练【基础版】(已下线)8.5.3 平面与平面平行【第三课】“上好三节课,做好三套题“高中数学素养晋级之路