名校
解题方法
1 . 在三棱柱
中,各棱长都相等,侧棱垂直于底面,点D是
与
的交点,则AD与平面
所成角的正弦值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-01更新
|
883次组卷
|
3卷引用:山西省太原市2022届高三二模数学(文)试题
山西省太原市2022届高三二模数学(文)试题四川省宜宾市第四中学校2023届高三三诊模拟文科数学试题(已下线)考点18 空间中的角度和距离问题-2-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)
2 . 在长方体
中,点
,
,
,
分别为
,
,
,
的中点,则下列结论成立的是( )
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
A.![]() | B.平面![]() ![]() |
C.直线![]() ![]() ![]() | D.平面![]() ![]() |
您最近一年使用:0次
2022-04-29更新
|
536次组卷
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4卷引用:2022年普通高等学校招生全国统一考试理科数学(黑卷)试题
名校
3 . 如图,在直三棱柱
中,
,
,
,
分别是
,
的中点,则直线
与平面
所成角的正弦值为( )
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963505737809920/2966409706733568/STEM/a324c5c1-d827-408b-8a8a-3b4dfa934657.png?resizew=162)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40bffa825c5e2c744723b0c9ccbdfda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963505737809920/2966409706733568/STEM/a324c5c1-d827-408b-8a8a-3b4dfa934657.png?resizew=162)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-04-26更新
|
1636次组卷
|
4卷引用:河北省秦皇岛市2022届高三二模数学试题
河北省秦皇岛市2022届高三二模数学试题福建省连城县第一中学2021-2022学年高一下学期月考(二)数学试题(已下线)考点17 点、直线、平面之间的位置关系-2-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)(已下线)微专题15 轻松搞定线面角问题
解题方法
4 . 如果一个四面体在同一顶点的三条棱两两垂直,则称为直角四面体.直角四面体
中,侧棱
、
、
两两垂直,棱长分别为
、
、
,点
在底面
的射影为点
,三条侧棱
、
、
与底面所成的角分别为
、
、
,以下四个结论:①
为
的内心;②
为锐角三角形;③若
,则
;④直角四面体
外接球的表面积为
.其中所有正确命题的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.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/6d42e97eee705d164e6ac6de9ecd6d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df81cda12d7601d58b1d9c7c180c4d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23aebbdf114b0c5e604a0323a3152469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de6b60b383f11a66bba70428f62813c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8995d3243fedbd50127273ae747fe358.png)
A.①② | B.②③ |
C.③④ | D.②③④ |
您最近一年使用:0次
5 . 如图,直四棱柱
的底面是边长为3的正方形,侧棱长为4,E,F分别在AB,BC上,且
,过
,E,F的平面记为
,则下列说法中正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/9019c77a-6f7c-4056-87ac-49e930dfff5f.png?resizew=153)
①
与面ABCD所成角的正切值为
;
②平面
截直四棱柱
所得截面的形状为四边形;
③平面
将直四棱柱分割成的上、下两部分的体积之比为
;
④平面
截直四棱柱
所得截面的面积为
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c166d5697b3954aab9bb1a160e41c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/9019c77a-6f7c-4056-87ac-49e930dfff5f.png?resizew=153)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408871c2b71ef88d6f556ce53cf73cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2858f41dc806e4a944c7cc58a46afff.png)
②平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
③平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84783b6ba0f36789519816101a437f46.png)
④平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e56e21a9e25f762fbf4b1a143b128aa.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
6 . 已知正方体
的棱长为3,动点M在侧面
上运动(包括边界),且
,则
与平面
所成角的正切值的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84513d4f34ced300ba033741597dd8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5563473602e1b17d582a165b7b7b6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-03-24更新
|
2092次组卷
|
10卷引用:西南四省名校2022届高三下学期第三次大联考理科数学试题
西南四省名校2022届高三下学期第三次大联考理科数学试题宁夏平罗中学2022届高三下学期第三次模拟数学(理)试题河南省部分学校2023届高三押题信息卷(一)理科数学试题(已下线)查补易混易错点06 立体几何-【查漏补缺】2022年高考数学(理)三轮冲刺过关(已下线)理科数学-2022年高考押题预测卷02(全国甲卷)江苏省连云港市灌云高级中学2021-2022学年高二下学期5月阶段测试数学试题(已下线)第20讲 空间向量与立体几何-2(已下线)专题11空间向量与立体几何必考题型分类训练-2上海市青浦高级中学2022-2023学年高二上学期12月质量检测数学试题湖南省常德市第一中学2022-2023学年高二下学期期中数学试题
7 . 如图①,在Rt△ABC中,
,
,D,E分别为AC,AB的中点,将△ADE沿DE折起到OA,DE的位置,使
,如图②.若F是
的中点,点M在线段
上运动,则当直线CM与平面DEF所成角最小时,四面体MFCE的体积是( )
![](https://img.xkw.com/dksih/QBM/2022/3/17/2938379034263552/2939521807958016/STEM/1b0ba6f41f7e4f5e89bb6a01368c13b9.png?resizew=285)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aebec30356b590a72bc2a75f9b09221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209acf15985d1ea1ad86fc4a37e38c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffbf41f3890efb6956907ad3c4062a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://img.xkw.com/dksih/QBM/2022/3/17/2938379034263552/2939521807958016/STEM/1b0ba6f41f7e4f5e89bb6a01368c13b9.png?resizew=285)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-03-19更新
|
985次组卷
|
4卷引用:山西省2022届高三第一次模拟数学(文科)试题
山西省2022届高三第一次模拟数学(文科)试题(已下线)第03讲 空间图形的表面积和体积-【帮课堂】2021-2022学年高一数学同步精品讲义(苏教版2019必修第二册)黑龙江省哈尔滨市第三中学2022-2023学年高二上学期开学验收考试数学试题(已下线)专题7-2 立体几何压轴小题:角度与动点、体积(讲+练)-2
名校
8 . 在长方体
中.
,
,P是线段
上的一动点,如下的四个命题中,①
平面
.②
与平面
所成角的正切值的最大值是
.③
的最小值为
.④以A为球心,
为半径的球面与侧面
的交线长是
.真命题共有几个( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1188d485929a484c4446662cb95e2fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57132b0bd38c035fec010ee3be1bc8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138e0045398b0f40258ae51abe8b6f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63c1f30aa78aada181a0923b6c1c69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
9 . 已知四棱锥P-ABCD的高为
,底面ABCD为矩形,BC=3,AB=2,PC=PD,且面PCD⊥面ABCD.现从四棱锥中挖去一个以CD底面直径,P为顶点的半个圆锥,得到的几何体如图所示.点N在弧
上,则PN与侧面PAB所成的最小角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-03-10更新
|
319次组卷
|
2卷引用:安徽省江南十校2022届高三下学期3月一模文科数学试题
10 . 如图,在边长为2的正方体
中,点
是该正方体对角线
上的动点,则以下结论不正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/2/27/2925609358401536/2933004214132736/STEM/22e00089-772b-4b1a-9f90-bead58b193b9.png?resizew=189)
![](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/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://img.xkw.com/dksih/QBM/2022/2/27/2925609358401536/2933004214132736/STEM/22e00089-772b-4b1a-9f90-bead58b193b9.png?resizew=189)
A.![]() | B.直线![]() ![]() ![]() |
C.![]() ![]() | D.当![]() ![]() ![]() |
您最近一年使用:0次
2022-03-10更新
|
684次组卷
|
3卷引用:陕西省渭南市2022届高三教学质量检测(一)理科数学试题
陕西省渭南市2022届高三教学质量检测(一)理科数学试题浙江省四校2022届高三下学期联考数学试题(已下线)第8.6讲 空间直线、平面的垂直-2021-2022学年高一数学链接教材精准变式练(人教A版2019必修第二册)