1 . 如图,在棱长为1的正方体
中,
分别是
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ae4301a42821499a1d1f86325a9ab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d9e94d8c69357bf94cf566fb4b627d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/a303235b-e6f0-429f-b347-70c7d270337a.png?resizew=167)
A.平面![]() |
B.三棱锥![]() ![]() |
C.异面直线![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 如图所示,圆柱的轴截面
是正方形,E是半圆弧AB的中点,则异面直线
和
所成角的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/ef530185-a2df-4056-b375-1d7ca8ada86b.png?resizew=150)
您最近一年使用:0次
解题方法
3 . 如图,在正四棱台
中,
为棱
上一点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/3e519d5b-55e5-48af-bf5b-f36b1a86ef0d.png?resizew=212)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3073702eded7870c69433894ee69e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/3e519d5b-55e5-48af-bf5b-f36b1a86ef0d.png?resizew=212)
A.不存在点![]() ![]() ![]() ![]() |
B.当点![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
4 . 如图,在直三棱柱
中,已知
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/27/c25360ca-97da-4603-b7c5-e4226a11e57b.png?resizew=127)
(1)求直三棱柱
的表面积;
(2)求异面直线
与
所成角的大小(用反三角函数表示);
(3)求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a07dce3f902528feedd7f129891a8b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/27/c25360ca-97da-4603-b7c5-e4226a11e57b.png?resizew=127)
(1)求直三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5830646a912c3a916beac4f88c116b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
您最近一年使用:0次
解题方法
5 . 在直三棱柱
中,
,M,N分别是
,
的中点,
,则
与
所成角的余弦值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3cc9cccfb4c260dac05f4ed57e8c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17758a65ec4a49485797b3e0e7d8a7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
您最近一年使用:0次
解题方法
6 . 如图,正三棱柱
中,点E为正方形
的中心,点F为棱
的中点,则异面直线
与
所成角的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
7 . 如图,在长方体
中,
,
,异面直线
与
所成角的余弦值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67b3f4690dc8d3fb60de49755797e17.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ace52b64e1e7dfc5211e033255b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e3b64a79d5668efcd92dc98cee255d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67b3f4690dc8d3fb60de49755797e17.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/16/29d75f01-9476-415b-bcc8-55c291edd967.png?resizew=166)
您最近一年使用:0次
2024-01-27更新
|
402次组卷
|
3卷引用:广东省湛江市2024届高三上学期1月联考数学试题
8 . 在棱长为2的正方体
中,
,
分别为棱
,
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.直线![]() ![]() |
B.过空间中一点有且仅有两条直线与![]() |
C.过![]() ![]() ![]() ![]() |
D.过直线![]() |
您最近一年使用:0次
9 . 亭子是一种中国传统建筑,多建于园林,人们在欣赏美景的同时也能在亭子里休息、避雨、乘凉(如图1).假设我们把亭子看成由一个圆锥
与一个圆柱
构成的几何体
(如图2,其中
,
,
三点共线).一般地,设圆锥
中母线与底面所成角的大小为
,当
时,方能满足建筑要求.已知圆锥高为1.6米,底面半径为2.4米.圆柱高为3米,底面半径为2米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/99f35146-06e1-471f-8ece-87c90df79a75.png?resizew=301)
(1)求几何体
的体积;
(2)如图2,设
为圆柱底面半圆弧
的三等分点,求圆柱母线
和圆锥母线
所在异面直线所成角的正切值,并判断该亭子是否满足建筑要求.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c5e80e1782eac5c106245682a9aa82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c5e80e1782eac5c106245682a9aa82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38420cd107c7c6969663dc8bbae5edf1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/99f35146-06e1-471f-8ece-87c90df79a75.png?resizew=301)
(1)求几何体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
(2)如图2,设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
您最近一年使用:0次
10 . 已知四棱锥
的底面是边长为4的正方形,
,
,则直线
与
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42deb2a4f5fd3513109c61037171507b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93e1661d70eca6d7eb848b667e388e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次