1 . 如图,边长为2的正方形
所在平面与半圆弧
所在的平面垂直,
是弧
上异于
,
的点.平面
与平面
的交线为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/fa9b6e2c-8681-4f3f-8314-2382f8ad9441.png?resizew=180)
(1)证明:
⊥平面
;
(2)点
在线段
上,满足
,当点
到平面
的距离为
时,判断
点在弧
的位置,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8a20c1fc8a5620db5db3a74eb01201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c5ef850e256c98ca4f033999e61311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/fa9b6e2c-8681-4f3f-8314-2382f8ad9441.png?resizew=180)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89abfe070487c1296d855093aa9596e4.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26629ff3211cf9b0e45b30a0730a3024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072c32b9948144d040a9a83f8d11ea8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2023-04-16更新
|
523次组卷
|
4卷引用:新疆维吾尔自治区2023届高三一模数学(文)试题
名校
解题方法
2 . 如图,在四棱锥P-ABCD中,
平面ABCD,
,
,
,
,
,点M在棱PD上,
,点N为BC中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/8df45557-5036-4baf-8e16-6a0d6062205c.png?resizew=182)
(1)求证:
平面PAB;
(2)求点C到平面PMN的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c3a4f72b84ebadd28b90711435adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8676b624f105072a3185911b25c912dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/8df45557-5036-4baf-8e16-6a0d6062205c.png?resizew=182)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2615867545de2c99083579535f5aee4a.png)
(2)求点C到平面PMN的距离.
您最近一年使用:0次
2023-03-30更新
|
527次组卷
|
2卷引用:新疆新和县实验中学2023届高三素养调研第一次模拟考试数学(文)试题
解题方法
3 . 如图,在三棱柱
中,
平面
,
,
是
的中点,点
在棱
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/97072327-f4e9-4f54-b457-6bc6354b04a0.png?resizew=124)
(1)证明:
;
(2)若
,
,直线
与平面
所成的角为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/1/97072327-f4e9-4f54-b457-6bc6354b04a0.png?resizew=124)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb1e5ce42bcb37db532a66e6626d3d2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c5282bc1ea20767a6c092c22c761ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69bcb3226e013650b7d8827c31dd41d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754119b17f3aa613526cec6c4fcb3f7d.png)
您最近一年使用:0次
2023-03-30更新
|
398次组卷
|
3卷引用:新疆乌鲁木齐地区2023届高三二模数学(理)试题
解题方法
4 . 如图,在三棱柱
中,
平面
,
,F是
的中点,点E在棱
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/30/595045dd-be16-4652-be66-998f2fafe5a1.png?resizew=136)
(1)证明:
;
(2)若
,
,且点
到平面
的距离为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/30/595045dd-be16-4652-be66-998f2fafe5a1.png?resizew=136)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb1e5ce42bcb37db532a66e6626d3d2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f21c7c194c5bc2986a21fd441c81495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8035fc825a001d7d9a3dacd8271662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3aace91caec728e174daec29a3568ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754119b17f3aa613526cec6c4fcb3f7d.png)
您最近一年使用:0次
2023-03-29更新
|
345次组卷
|
3卷引用:新疆乌鲁木齐地区2023届高三二模数学(文)试题
解题方法
5 . 如图,在棱长为a的正方体
中,M,N,P分别是
的中点,Q是线段
上的动点,则下列命题:
①不存在点Q,使
平面MBN;
②三棱锥
的体积是定值;
③不存在点Q,使
平面QMN;
④B,C,D,M,N五点在同一个球面上.
其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/f8c2e2ba-df31-4313-95ca-37983515b338.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef92425dcb553a585721522c904739c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94ce22f30a8de2af135de3c89403aff.png)
①不存在点Q,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72221ee5b504d596ff799c0b356aa0ea.png)
②三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbec5322800f0a88b7006bdb0a8de0fb.png)
③不存在点Q,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565133e91e3ace2b2187cfc6f1db5be6.png)
④B,C,D,M,N五点在同一个球面上.
其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/f8c2e2ba-df31-4313-95ca-37983515b338.png?resizew=178)
A.①② | B.③④ | C.①③ | D.②④ |
您最近一年使用:0次
2023-03-29更新
|
507次组卷
|
6卷引用:新疆乌鲁木齐地区2023届高三二模数学(文)试题
新疆乌鲁木齐地区2023届高三二模数学(文)试题新疆乌鲁木齐地区2023届高三二模数学(理)试题新疆维吾尔自治区乌鲁木齐市2023届高三第二次质量监测数学(理)试题新疆维吾尔自治区乌鲁木齐市2023届高三第二次质量监测文科数学试题(已下线)专题08 立体几何(理科)(已下线)专题12立体几何(选填)
6 . 如图,在平面四边形
中,
,且
,以
为折痕把
和
向上折起,使点
到达点
的位置,点
到达点
的位置,且平面
和平面
不重合.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/09e9032e-d407-4332-be74-41840e0af0e9.png?resizew=169)
(1)求证:
;
(2)若点
为
的重心(三条中线的交点),
平面
,求直线
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880ad3e46302c77d0545bf2cd0b82c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73636989e83905f8800a865c2b608c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128c69eb81dae89c6989d06d20925ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/09e9032e-d407-4332-be74-41840e0af0e9.png?resizew=169)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c672f693a7e75a7bae4936dcb1920430.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d0df73a49d4348a5c1e3aaa149cc8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
您最近一年使用:0次
2023·新疆·模拟预测
7 . 如图,已知四棱锥
的底面ABCD为菱形,平面
平面ABCD,
,E为CD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/d9d90a46-b925-41f5-aef5-befb78fbbfcf.png?resizew=197)
(1)求证:
;
(2)若
,
,求平面PBC与平面PAE所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/d9d90a46-b925-41f5-aef5-befb78fbbfcf.png?resizew=197)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0180a58a753fced571fc00f0bee8ff0d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305cd5bd8f8a00aff4e9d9639a72622a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c3a4f72b84ebadd28b90711435adc.png)
您最近一年使用:0次
解题方法
8 . 三棱锥
中,点A在平面BCD的射影H是△BCD的垂心,点D在平面ABC的射影G是△ABC的重心,
,则此三棱锥体积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 在棱长为2的正方体
中,
与
交于点
,则( )
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() ![]() ![]() |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.三棱锥![]() ![]() |
您最近一年使用:0次
2023-02-13更新
|
3630次组卷
|
17卷引用:新疆克拉玛依市第十三中学2024届高三上学期12月月考数学试题
新疆克拉玛依市第十三中学2024届高三上学期12月月考数学试题江苏省南通市2023届高三下学期第一次调研测试数学试题广东省珠海市第一中学2023届高三下学期2月阶段性考试数学试题江苏省泰州市2023届高三下学期第一次调研测试数学试题重庆市万州第二高级中学2023届高三下学期第一次质量检测数学试题广东省佛山市南海区华南师范大学附属中学南海实验高级中学2023届高三强化考(三) 数学试题(已下线)湖南省长沙市雅礼中学2024届高三上学期月考(二)数学试题变式题11-14(已下线)第八章立体几何初步(基础检测卷)(已下线)8.6.2 直线与平面垂直(2) -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)第八章 立体几何初步(B卷·能力提升练)-【单元测试】2022-2023学年高一数学分层训练AB卷(人教A版2019必修第二册)(已下线)13.3 空间图形的表面积和体积(2)山东省滕州市第五中学2022-2023学年高一下学期5月月考数学试题河南省郑州市基石中学2022-2023学年高一下学期6月月考数学试题甘肃省民勤县第一中学2022-2023学年高一下学期第二次月考数学试题山东省烟台栖霞市第一中学2022-2023学年高一下学期6月月考数学试题(已下线)核心考点08空间直线、平面的垂直-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)(已下线)8.6.2 直线与平面垂直(第1课时)直线与平面垂直的判定(分层作业)-【上好课】
解题方法
10 . 如图,在多面体
中,四边形
是平行四边形,四边形
是矩形,
,
,
,
分别是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/47ef9753-2339-43a8-97b2-224f757fe3df.png?resizew=206)
(1)证明:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84daca1ff0963ca5784c333129df6329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf23e73ae2a15c04bbed3981cb8e511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca967c33ca085919cb91c4baaa35991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebf42a849a1e6ffdc800203c3d01965.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/47ef9753-2339-43a8-97b2-224f757fe3df.png?resizew=206)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4b93d7abcfc4c3df48f03aa969c17f.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17d82f8f18d0096846ec63109654633.png)
您最近一年使用:0次
2023-02-03更新
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219次组卷
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2卷引用:新疆维吾尔自治区乌鲁木齐市第97中学2024届高三上学期12月月考数学试题