名校
1 . 正方体
的棱长为2,点
平面
,点
是线段
的中点,若
,则当
的面积取得最小值时,三棱锥
外接球的体积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c2f227b3ec9a65debb32a0395ffd62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd246f7c3c275000a94d35438570875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6818a98204f62c1b16699d26ca0c3f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed75ce5131b8067cf22ddd5e4e5e85d.png)
您最近一年使用:0次
2023-04-10更新
|
937次组卷
|
4卷引用:湖南省长沙市第一中学2023届高三下学期月考(八)数学试题
湖南省长沙市第一中学2023届高三下学期月考(八)数学试题(已下线)重难点突破01 玩转外接球、内切球、棱切球(二十三大题型)-3重庆市缙云教育联盟2023-2024学年高二上学期12月月度质量检测数学试题新疆维吾尔自治区阿克苏地库车市第二中学2023-2024学年高二上学期期中数学试题
2 . 如图,在棱长为
的正方体
中,点
分别为棱
的中点,点
为侧面
内部(不含边界)一动点,给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/2/112c215f-71eb-4ad4-9329-72bf5594b532.png?resizew=158)
①当点
运动时,平面
截正方体所得的多边形可能为四边形、五边形或六边形;
②当点
运动时,均有平面
平面
;
③当点
为
的中点时,直线
平面
;
④当点
为
的中点时,平面
截正方体的外接球所得截面的面积为
.
其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3dd50ad676db896ea4cc6f4637ce22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/2/112c215f-71eb-4ad4-9329-72bf5594b532.png?resizew=158)
①当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb0295b373c6e306ca0dcf86f8b941.png)
②当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d6772f5331cf0cc5302123e4698ec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15e58659e6ee4d93650e2edb6d6f7ff.png)
③当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07391ef575d28f09bc5cda0ff8130a54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb0295b373c6e306ca0dcf86f8b941.png)
④当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb0295b373c6e306ca0dcf86f8b941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877c2a74cc56d5936a49fde5159c8703.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
解题方法
3 . 如图,在棱长为
的正方体
中,点
,
分别在线段
和
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/cc682383-3e95-4069-b50d-6e36d0bc4277.png?resizew=155)
给出下列四个结论:
①
的最小值为
;
②四面体
的体积为
;
③有且仅有一条直线
与
垂直;
④存在点
,
,使
为等边三角形.
其中所有正确结论的序号是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/cc682383-3e95-4069-b50d-6e36d0bc4277.png?resizew=155)
给出下列四个结论:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
②四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb1d7bd70e898d08f78de751294df1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
③有且仅有一条直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
④存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbec471ffed534e60ec40d48b9f0968.png)
其中所有正确结论的序号是
您最近一年使用:0次
2023-03-27更新
|
1914次组卷
|
9卷引用:北京市西城区2023届高三一模数学试题
北京市西城区2023届高三一模数学试题专题12压轴题汇总(10、15、21题)专题08空间向量与立体几何北京卷专题19B空间向量与立体几何(选择填空题)北京市昌平区第一中学2024届高三上学期期中考试数学试题北京市陈经纶中学2023-2024学年高三上学期数学阶段性诊断练习6宁夏银川一中2022-2023学年高二下学期期中考试数学(理)试题(已下线)专题02 空间向量与空间角、空间距离【考题猜想】-2023-2024学年高二数学上学期期中考点大串讲(人教A版2019选择性必修第一册)(已下线)高二上期中真题精选(易错60题30个考点专练)【考题猜想】-2023-2024学年高二数学上学期期中考点大串讲(人教A版2019选择性必修第一册)
名校
解题方法
4 . 直三棱柱
,中,
,
,点D是线段
上的动点(不含端点),则以下正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af2626608f61a4cfbb86494bd6df0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
A.AC∥平面![]() |
B.CD与![]() |
C.∠ADC的取值范围为![]() |
D.![]() ![]() |
您最近一年使用:0次
2023-03-12更新
|
1133次组卷
|
10卷引用:福建省厦门市2021届高三5月二模数学(A卷)试题
5 . 如图1,在
中,
,
,
为
的中点,
为
上一点,且
.现将
沿
翻折到
,如图2.
.
(2)已知二面角
为
,在棱
上是否存在点
,使得直线
与平面
所成角的正弦值为
?若存在,确定
的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b58f0f220fa0c241b99af087a914ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9272e76d70b87882b81823e5de53bc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8c5e0036173420e073f26c8f643ae3.png)
(2)已知二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8eda3ef8ac1ff3cf6225cc490d35616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d1308d5db144e31b4d0211c63ef52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b29a19832713e1102e46f324a00419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2023-03-11更新
|
1950次组卷
|
8卷引用:湖南省部分市2023届高三下学期3月大联考数学试题
名校
6 . 在棱长为
的正方体
中,点
满足
,其中
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9dd1458186cfbdf0701ba835572721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
7 . 在棱长为
的正方体
中,
是棱
的中点,
是侧面
内的动点,且满足直线
平面
,当直线
与平面
所成角最大时,三棱锥
外接球的半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2e72bc4f73790da7c76e46767b4fd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912d03b664bbf5896427da55c5d4e0de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a604466a9c8d10d557b3dfc43b547065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fdc41036afa324c4382f9045838cd01.png)
您最近一年使用:0次
2023-02-18更新
|
525次组卷
|
2卷引用:广东省揭阳市普宁国贤学校2023届高三下学期3月摸底数学试题
解题方法
8 . 如图,设E,F分别是正方体
的棱CD上的两个动点,点E在F的左边,且
,
,点P在线段
上运动,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/6e1c158a-648c-4e52-86f0-e496dffd7de3.png?resizew=187)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4901a7eda97d6a307db76c4fb196ba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7d857811cbd619f868d951aa7a0ab8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/6e1c158a-648c-4e52-86f0-e496dffd7de3.png?resizew=187)
A.![]() ![]() |
B.三棱锥![]() |
C.点P到平面![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
2023-02-14更新
|
576次组卷
|
2卷引用:江苏省常州市横林高级中学 2022-2023学年高三上学期10月学情检测数学试题
名校
解题方法
9 . 如图,某正方体的顶点A在平面
内,三条棱
都在平面
的同侧.若顶点B,C,D到平面
的距离分别为
,
,2,则该正方体外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766565857d28617cc4c2a26ecf76ec24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/618e94ea-2880-4730-aa41-3781ef8c9719.png?resizew=223)
您最近一年使用:0次
2023-02-04更新
|
1579次组卷
|
6卷引用:河北省邯郸市部分学校2023届高三下学期开学考试数学试题
河北省邯郸市部分学校2023届高三下学期开学考试数学试题湖南省常德市临澧县第一中学2024届高三上学期第五次阶段性考试数学试题(已下线)技巧02 填空题的答题技巧(8大核心考点)(讲义)辽宁省辽东教学共同体2023-2024学年高二上学期期中联合考试数学试题(已下线)难关必刷01 空间向量的综合应用-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)福建省福州市第四中学2023-2024学年高二上学期第二学段模块检测数学试题
名校
解题方法
10 . 如图,在棱长为2的正方体
中,点
满足
,其中
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/31be8d25-3488-46cd-b6d4-2cd13fb2f4c2.png?resizew=177)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1fe201bff7e0825054558a53ccaad9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/31be8d25-3488-46cd-b6d4-2cd13fb2f4c2.png?resizew=177)
A.有且仅有一点![]() ![]() |
B.![]() ![]() |
C.三棱锥![]() ![]() |
D.当![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-02-03更新
|
592次组卷
|
2卷引用:广东省广州市第一中学2024届高三上学期10月月考数学试题