1 . 如图,在正方体
中,
为棱
的中点,
是正方形
内部(含边界)的一个动点,且
平面
.给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/cdcc326d-298b-409e-861e-5785536989b8.png?resizew=161)
①动点
的轨迹是一段圆弧;
②存在符合条件的点
,使得
;
③三棱锥
的体积的最大值为
;
④设直线
与平面
所成角为
,则
的取值范围是
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6293a2528570eda7fef7c784efc7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1df970d8b2fcbb38bfac1dc33da9179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/cdcc326d-298b-409e-861e-5785536989b8.png?resizew=161)
①动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
②存在符合条件的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fc86f0edd9477df7540a1d0b1a309c.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e901763c0c5723616c6cc491657c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
④设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fc725182c2fd1413319fea35b95c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc24d605ad707ad0e76059d8a31f50d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89d3cb58df77b34628cc290b2c91fbb.png)
其中所有正确结论的序号是
您最近一年使用:0次
2023-01-07更新
|
916次组卷
|
4卷引用:北京市铁路第二中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
2 . 如图,在四棱锥
中,底面
是边长为a的正方形,
平面
.若
,则直线
与平面
所成的角的大小为( )
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00803e67a5d417a9a4dc00277fca778b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-12-10更新
|
992次组卷
|
8卷引用:北京市朝阳区清华大学附属中学朝阳学校2022-2023学年高一下学期期中考试数学试题
北京市朝阳区清华大学附属中学朝阳学校2022-2023学年高一下学期期中考试数学试题北京市海淀实验中学2023届高三上学期12月展示数学试题北京高一专题09立体几何(已下线)8.6.2直线与平面垂直的性质定理(第2课时)(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)立体几何专题:线线角与线面角的5种考法(已下线)8.6.2 直线与平面垂直(1) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)(已下线)专题强化二:异面角、线面角、二面角的常见解法 (2)(已下线)第04讲 利用几何法解决空间角和距离19种常见考法归类(2)
名校
解题方法
3 . 如图,在棱长为
的正四面体
中,点
、
、
分别在棱
、
、
上,且平面
平面
,
为
内一点,记三棱锥
的体积为
,设
,对于函数
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/6ed4bf58-a614-4143-8c10-96f3b194e26c.png?resizew=133)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70444e3a66d1068038c5b5a77c7954aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f493c82f97e7318c2ea054e2c800542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169f33b3e7bf16c1ec868c5e2c60492b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5884a6433b3c69e37f79d1336791742c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e4d385f8c1a62ca0c9d1639782bc0a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/6ed4bf58-a614-4143-8c10-96f3b194e26c.png?resizew=133)
A.当![]() ![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.存在![]() ![]() ![]() ![]() |
您最近一年使用:0次
4 . 在空间直角坐标系
中,已知
,那么该四面体
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27327dd7d75c27bf07caf65e79b5033d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 如图,已知正方体
的棱长为
分别为棱
的中点,则三棱锥
的体积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18755b4aaf64e1d055018c8510f8f2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79a03b1084cb2e8f8ac00329fe98544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0180b5a10c4798c7b8e7c32a5a8bf694.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/93812358-466a-410c-8e2a-19ff5ab92284.png?resizew=195)
您最近一年使用:0次
2022-11-13更新
|
1508次组卷
|
8卷引用:北京市海淀区北京第一零一中学2022-2023学年高二上学期期中考试数学试题
北京市海淀区北京第一零一中学2022-2023学年高二上学期期中考试数学试题安徽省无为襄安中学2022-2023学年高一下学期期中数学试题(已下线)专题06几何体表面积体积与球切、接的问题(测)(理科)第一篇 热点、难点突破篇-《2022年高考理科数学二轮复习讲练测》(全国课标版)(已下线)解密11 空间几何体(讲义)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(新高考专用) (已下线)北京市海淀区2023届高三上学期期末练习数学试题变式题11-15四川省成都市玉林中学2023届高三二诊模拟理科数学试题(三)(已下线)第七章 立体几何与空间向量 第一节 第一课时 基本立体图形及表面积与体积 讲广东省深圳市云顶学校2024届高三上学期8月质量检测数学试题
名校
解题方法
6 . 如图,在棱长为2的正方体
中,E、F分别为棱
的中点,G为面对角线
上的一个动点,则下列选项中不正确 的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/30bb546e-a294-48ca-af0f-d9a1f855e48a.png?resizew=176)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe9cdfd9088a3c5f24617d1d9d1157d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/30bb546e-a294-48ca-af0f-d9a1f855e48a.png?resizew=176)
A.三棱锥![]() |
B.线段![]() ![]() |
C.线段![]() ![]() ![]() |
D.设直线FG与平面![]() ![]() ![]() ![]() |
您最近一年使用:0次
7 . 在正方体
中,
为棱
上的动点,
为线段
的中点.给出下列四个结论:
①
;
②直线
与平面
的夹角不变;
③三棱锥
的体积不变;
④点
到
,
,
,
四点的距离相等.
其中,所有正确结论的序号为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/a3cfee68-754f-41a7-bc1a-fae673965fc7.jpg?resizew=190)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9601d29de0a884953b039ee72f0158fe.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3681ff426cdbe7184eeb004ff0eaefb.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557f8ff92d79a9d464ff13de17f3eae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcfe69b939fd1c271747fe9d37ccdf9.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc3bf74119692ac98eb24fcfa2a3f9f.png)
④点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
其中,所有正确结论的序号为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/a3cfee68-754f-41a7-bc1a-fae673965fc7.jpg?resizew=190)
A.②③ | B.③④ | C.①③④ | D.①②④ |
您最近一年使用:0次
8 . 如图,在正方体ABCD—
中,E为棱
的中点,动点P沿着棱DC从点D向点C移动,对于下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/a4f0c52e-c61d-4d82-aeb5-6afaac06b4d2.png?resizew=202)
①存在点P,使得
;
②存在点P,使得平面
平面
;
③
的面积越来越小;
④四面体
的体积不变.
所有正确的结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/a4f0c52e-c61d-4d82-aeb5-6afaac06b4d2.png?resizew=202)
①存在点P,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656aceec19543470bd58ed3d304d155d.png)
②存在点P,使得平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f4b1504641d77d1af056b8187042c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c1b7f8c6e4793af4336d02addfbfbb.png)
④四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6738d05f0c7e4f0076fd5c094a4fb51c.png)
所有正确的结论的序号是
您最近一年使用:0次
2022-11-08更新
|
1580次组卷
|
6卷引用:北京市第十三中学2023届高三上学期期中数学试题
北京市第十三中学2023届高三上学期期中数学试题(已下线)数学(北京B卷)北京市第八十中学2023届高三上学期12月期末数学模拟试题(已下线)专题07 立体几何小题常考全归类(精讲精练)-3河北省邯郸市魏县第五中学2022-2023学年高二上学期期末数学试题(已下线)第七章 立体几何与空间向量 第六节 利用空间向量求空间角与距离(B素养提升卷)
解题方法
9 . 已知三棱锥
(如图1)的平面展开图(如图2)中,四边形
为边长为
的正方形,
和
均为正三角形.在三棱锥
中:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/e9351519-a1da-41c8-a386-cad09f759133.png?resizew=367)
(1)求点
到平面
的距离;
(2)若点
在棱
上,满足
,点
在棱
上,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6830ebecddbd9759be626289c408e4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/e9351519-a1da-41c8-a386-cad09f759133.png?resizew=367)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b489c25405ce48699d4f0a62820bed.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a56cd46a1b2826769e1690afaf5c54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79498e1df1280868532f59ee8059a223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3dbfc9719c6646d58bda36dba623902.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,四棱锥
的底面为菱形,
,
,
底面
,
,
分别是线段
,
的中点,
是线段
上的一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/995042db-ddac-4478-a675-e326cde38a77.png?resizew=142)
(1)若
平面
,求证:
为
的中点;
(2)若
是直线
与平面
的交点,试确定
的值;
(3)若直线
与平面
所成角的正弦值为
,求三棱锥
体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5a86745bfe1dfe7bc2683811210330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b5d2943803894bc5d204e75e2d172b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/995042db-ddac-4478-a675-e326cde38a77.png?resizew=142)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dace90bcafd1fbf25f272b05c3875f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b544c9dfc27b50fcde4b12d694c12ad4.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9bbc7e0de28c652ae10a8db5b4e2687.png)
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