名校
解题方法
1 . 已知如图,在三棱柱
中,底面
是等边三角形,
,
在底面的射影为
的中点,
为
的中点,则直线
与平面
所成角的正弦值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/f7b552a7-5d1d-426f-b9f3-0083ac185c12.png?resizew=236)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/f7b552a7-5d1d-426f-b9f3-0083ac185c12.png?resizew=236)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-25更新
|
987次组卷
|
4卷引用:重庆市三峡名校联盟2021-2022学年高一下学期5月联考数学试题
重庆市三峡名校联盟2021-2022学年高一下学期5月联考数学试题吉林省白山市抚松县第一中学2021-2022学年高一下学期第二次月考数学试题(已下线)第04讲 空间直线、平面的垂直 (讲)-2(已下线)微专题15 轻松搞定线面角问题
名校
解题方法
2 . 已知正四棱柱
中,
,E为
的中点,P为棱
上的动点,平面
过B,E,P三点,有如下四个命题:
①平面
平面
;
②平面
与正四棱柱表面的交线围成的图形一定是四边形;
③当P与A重合时,
截此四棱柱的外接球所得的截面面积为
;
④存在点P,使得AD与平面
所成角的大小为
.
则正确的命题个数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e213c120b525e41b8156c8bd51d5168f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
①平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa807136194c18d3ac58902c67f9333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914d46f7e72b55d2ff3d9bc38e02b31d.png)
②平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
③当P与A重合时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c282794d917604db40da9d6fb9443fb.png)
④存在点P,使得AD与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
则正确的命题个数为( ).
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
3 . 正三棱柱
中所有棱长均为2,点E是则棱
上的一个动点,有下列判断,正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
A.正三棱柱的侧面积是![]() |
B.正三棱柱的体积是3 |
C.当E是![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
4 . 已知三棱锥
中
,
,
平面
,
,直线
与平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9332278351ab92e03e984e9279dd06a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1be17e0a3e51cde1f50f384198e71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f1897a7e856b42f8cee0f286ad913d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ced8225ff27c8e3e1897b8629312d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 已知正方体
的棱长为2,点O为
的中点,若以O为球心,
为半径的球面与正方体
的棱有四个交点E,F,G,H,则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() |
D.平面![]() ![]() |
您最近一年使用:0次
解题方法
6 . 在正方体
中,
是线段
(不含端点)上的点,记直线
与直线
成角为
,直线
与平面
所成角为
,二面角
的平面角为
,则( )
![](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/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70682f6196e6c1a08eb48da73e8919ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知正三棱柱
,各棱长均为2,且点
为棱
上一动点,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/15/2979902573969408/2980631545159680/STEM/82253e8a-139f-4873-b289-633fd7e5e10c.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/5/15/2979902573969408/2980631545159680/STEM/82253e8a-139f-4873-b289-633fd7e5e10c.png?resizew=181)
A.该正三棱柱既有外接球,又有内切球 |
B.四棱锥![]() ![]() |
C.直线![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
2022-05-16更新
|
785次组卷
|
3卷引用:河北省邯郸市2022届高三5月模拟数学试题
名校
8 . 如图,矩形ABCD是圆柱
的轴截面,
,E,F为底面圆周上的点,且
,
,M为CD的中点,则直线AB与平面EFM所成的角为( )
![](https://img.xkw.com/dksih/QBM/2022/5/13/2978723748618240/2980495794135040/STEM/451c308a-12ed-4cbc-b596-a300a89862ef.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f2125dfe51596f77b060572f706cbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02f56a65b216ad9a90eb6e69074595b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e044d14090cf6fcbcd4b6ad1fa0ec1ee.png)
![](https://img.xkw.com/dksih/QBM/2022/5/13/2978723748618240/2980495794135040/STEM/451c308a-12ed-4cbc-b596-a300a89862ef.png?resizew=159)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 如图,菱形ABCD的边长为
,
,将
沿对角线BD折起,使得二面角
的平面角的余弦值是
,则
与平面ABD所成角的正弦值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/fc2263f9-f3dc-4d94-b84f-1a08d9e14eca.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a0861ea8521adfa5f657245377fc92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15468257071ad6064faed40b8e14476.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/fc2263f9-f3dc-4d94-b84f-1a08d9e14eca.png?resizew=175)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 在长方体
中.
,P是线段
上的一动点,如下四个命题中,①
与平面
所成角的正切值的最大值是
;
②
平面
;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/17d20d9a8058985d9847ddd99046fdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.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)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24579dca7ff1542ae019fc36110dddbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57132b0bd38c035fec010ee3be1bc8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138e0045398b0f40258ae51abe8b6f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63c1f30aa78aada181a0923b6c1c69e.png)
④以A为球心,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b914927471c833b46300dd76e92347d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5170e87322172ef27379adb171d4b76e.png)
真命题共有几个( )
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次