1 . 如图,在长方体
中,已知
为棱
的中点,
为底面
上(含边界)的一动点.记点
轨迹的长度为
,则下列说法正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/23f60015-fe66-426c-b2c9-adf49d93901f.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcaf002bc728203ae205b7574001419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/23f60015-fe66-426c-b2c9-adf49d93901f.png?resizew=163)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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2 . 如图,已知四边形为平行四边形,
为
的中点,
,
.将
沿
折起,使点
到达点
的位置.
(1)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94150b3de8f92462598101d4adc17dc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ff27eea7545bb06f9472f91290c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12319a1cdcc58d25c30d2b3ab5848237.png)
(2)若点A到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00acbded791e0839ec43bae872400607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6405e9a84b771505dfeaf4d7129d0fc2.png)
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2023-11-17更新
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3 . 如图,已知正方体
的棱长为2,点P是线段
的中点,点Q是线段
上的动点(不含端点),则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/589ea16d-01db-4050-88b5-7ff1225adb2b.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/589ea16d-01db-4050-88b5-7ff1225adb2b.png?resizew=152)
A.![]() ![]() |
B.Q到平面![]() ![]() |
C.![]() ![]() ![]() |
D.三棱锥![]() ![]() |
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2024-01-06更新
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4卷引用:江苏省镇江市句容高级中学2024届高三上学期12月学情调研数学试题
江苏省镇江市句容高级中学2024届高三上学期12月学情调研数学试题(已下线)重难点6-1 空间角与空间距离的求解(8题型+满分技巧+限时检测)福建省泉州市实验中学2023-2024学年高二上学期1月考试数学试题江西师范大学附属中学2023-2024学年高二上学期期末数学试卷
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4 . 如图,在棱长为1的正方体
中,直线
到平面
的距离等于____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9539f8fb13345b449274b67bbda995db.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/6985be2d-a50c-48e5-b3d9-512687cfda24.png?resizew=167)
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解题方法
5 . 如图,在三棱柱
中,四边形
为菱形,
,
,
,平面
平面
,Q在线段上移动,P为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2023/12/25/3396729386549248/3396783588081664/STEM/0db9a04b71be464e9730451eabd0f7dc.png?resizew=216)
(1)若Q为线段AC的中点,H为BQ中点,延长AH交BC于D,求证:
平面
;
(2)若二面角
的平面角的余弦值为
,求点P到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f0d0e78101fef36a75b70ac7e7cf5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fba6dc92460fa44832398fd2868940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cdaadeae37736a1e6dd93fa1fe712f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/2023/12/25/3396729386549248/3396783588081664/STEM/0db9a04b71be464e9730451eabd0f7dc.png?resizew=216)
(1)若Q为线段AC的中点,H为BQ中点,延长AH交BC于D,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5edfe97aeab0cf16b40fa9d2e15f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ffba8658b0023316117e1536cbf806.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39eefa58485e43a86a1931a2aa7222a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ec70bc9d4f8f5df312e2f09ee3bcb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fed1f54c1b008a633326db4f20288c5.png)
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6 . 正方体
棱长为2,E,F分别是棱
,
的中点,M是正方体的表面上一动点,当四面体
的体积最大时,四面体
的外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5627b81d85bbe3bc00f8d070bfd6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5627b81d85bbe3bc00f8d070bfd6fc.png)
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2023-12-22更新
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7 . 如图,已知正方体
的棱长为2,棱
的中点分别是
,点
是底面
内任意一点(包括边界),则三棱锥
的体积的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b144d6ccd984995eacc671d20096ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376f23888bba432a98cd55cba547f12f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/4ffd9072-0684-4739-a9f4-f4d606bdf81d.png?resizew=160)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 在正四棱柱
中,
,
,.H,
,E分别为
,
,
的中点,点M在直线
上,
,
.下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86163e76653de1f383788b741fb64a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5361e6b4e4799e61d716a47eef7fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77417a5c3caaeb27790ec1117d99063c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
A.当![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.若平面![]() ![]() ![]() ![]() |
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2卷引用:江苏省连云港市2023-2024学年高三上学期期中数学试题
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9 . 在棱长为6的正方体
中,
,
是
中点,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79b194152945f719c21bbe5d525338d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
A.平面![]() |
B.直线![]() ![]() ![]() |
C.从点![]() ![]() ![]() |
D.点![]() ![]() ![]() |
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2卷引用:江苏省镇江市丹阳市2023-2024学年高三上学期10月期中数学试题
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10 . 在棱长为2的正方体
中,
分别是棱
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e426224c3a3ce9bb5a731eed81c40.png)
A.![]() ![]() |
B.存在点![]() ![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.点![]() ![]() ![]() |
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