名校
1 . 如图,在四棱锥
中,
平面
,
,底面
为直角梯形,
,
,
,
是
的中点,点
,
分别在线段
与
上,且
,
.
平面
,求
、
的值;
(2)若
平面
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb466d3d90e7d27f27c60c8beecd4444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9154a06545db6cc85f99a1f8bb95715a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06531ed4a8fc81c1134dbe1e587b19b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b28a07491270be75a3697538bec706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8014e499e7852b587b3b36af14b7816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afb187132164456d14a203e94cfa385.png)
您最近一年使用:0次
名校
解题方法
2 . 已知在三棱锥
中,
,
为以AC为斜边的等腰直角三角形.
平面
;
(2)设
,存在该几何体外的一点D,使得
为等边三角形,平面BCD与平面ABC所成的锐二面角的正切值为
,求AD的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd13eeeae4d887d11685c108e462920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
解题方法
3 . 如图,在直三棱柱
中,
,
,
分别为
,
的中点,
为线段
上异于端点的一点.
到平面
的距离;
(2)若平面
与平面
的夹角的余弦值为
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee730f6a2551fb1b582ecf290cfea233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3650dbf500c1223ce389b7b5e07c096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98842968c75427c940b34de391a3a778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7ac9a0bdabb5ac568812e540908370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b886daa3c9bb7153acd9f651f99eb2c1.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4bb9571b33d88f735fe6dc8fe41209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a734873a608f0c070dec80b89d179754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f348ed8a1690d3ed02aa64459ca50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4bb9571b33d88f735fe6dc8fe41209.png)
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名校
解题方法
4 . 如图,在直四棱柱
中,四边形
是矩形,
,
,
,点P是棱
的中点,点M是侧面
内的一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
A.直线![]() ![]() ![]() |
B.存在点![]() ![]() |
C.若点![]() ![]() ![]() ![]() |
D.若点![]() ![]() ![]() |
您最近一年使用:0次
2024-05-29更新
|
575次组卷
|
5卷引用:湖南省2024届高考数学临门押题考试试卷
湖南省2024届高考数学临门押题考试试卷2024届河北省秦皇岛市部分高中高三二模数学试题(已下线)专题7 立体几何综合问题【讲】(已下线)专题5 空间向量的应用问题【讲】(已下线)专题4 立体几何中的动态问题【讲】
2024·全国·模拟预测
名校
5 . 已知平面
平面
,且均与球
相交,得截面圆
与截面圆
为线段
的中点,且
,线段
与
分别为圆
与圆
的直径,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414844edd458857bdfc80bffa61cbf9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32987e12782f888f4a6db40c5c3d13ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2892d380f9370caecf6ac7370b3a0737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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名校
解题方法
6 . 如图,八面体
的每一个面都是边长为4的正三角形,且顶点
在同一个平面内.若点
在四边形
内(包含边界)运动,
为
的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2c288fabe405ad5ee7c5e4b448d0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
A.当![]() ![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.存在一个体积为![]() ![]() |
您最近一年使用:0次
2024-04-02更新
|
393次组卷
|
5卷引用:湖南省长沙市雅礼中学2023-2024学年高二下学期5月检测数学试题
名校
7 . 如图,四棱锥
中,底面
为矩形,
底面
,点
在侧棱
上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/c3dc0680-9693-446d-8d93-6562dda4fa65.png?resizew=154)
(1)证明:
是侧棱
的中点;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb2e071d4e01107dcf7d95cbb86b415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106a1269445c24d80b2e027071a6ecd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80be421a052e5eb07a61115d89cdf9ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/c3dc0680-9693-446d-8d93-6562dda4fa65.png?resizew=154)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1497bbe0ac8de93f8c8623d5e700057.png)
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名校
8 . 如图,正方体
的棱长为2,在正方形
的内切圆上任取一点
,在正方形
的内切圆上任取一点
,在正方形
的内切圆上任取一点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/aab1b163-e061-424a-be58-377ca9a334d1.png?resizew=160)
(1)若
分别是棱
的中点,,求棱
和平面
所成角的余弦值;
(2)求
的最小值与最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4c7d46046bee57490a3e57cbb1d2fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6d456e2adab93eabc931b3227bb79f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d85d8c1f8add55bdc8c393be3ba2ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acda1869fac2cc90e784fba183bbcc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac64da7f096fea95c25cfe54fe83d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89029e1d782dbf6a0bda8605a7c5ad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9d7cb07ff7f2c4da5f7b33c5484c09.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/aab1b163-e061-424a-be58-377ca9a334d1.png?resizew=160)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cc3fb30df78f02d680e281d7056dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6deeea89bf3591f0e272310f3d47a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade8909fc5354a7b5391213fbc5304ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef32166670d0745cd341ec21a6338cad.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c5f98aafaae4bd386e8d9701187e70.png)
您最近一年使用:0次
2024-03-02更新
|
1136次组卷
|
2卷引用:湖南省湖南省长沙市第一中学2024届高三下学期高考适应性演练(一)数学试题
9 . 在长方体
中,
,
,点E是正方形
内部或边界上异于C的一点,则下列说法正确的是( )
![](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/e168672b47d7e64dc1b404f8882c7dcf.png)
A.若![]() ![]() ![]() |
B.不存在点E,使得![]() |
C.若![]() ![]() ![]() |
D.若直线![]() ![]() ![]() |
您最近一年使用:0次
10 . 如图,在正三棱柱
中,底面
为
的中点,
为
上一个动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/10/137cc743-05d9-4d87-bbf3-27d17e603643.png?resizew=130)
(1)若
为靠近
点线段
的三等分点,求证:
平面
;
(2)在线段
上是否存在点
,使平面
与平面
的夹角等于
?若存在,求出
的长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fda3a7b2a2c26ff939c83a98e67cfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/10/137cc743-05d9-4d87-bbf3-27d17e603643.png?resizew=130)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a38e6c6dfde2b19b6b47f35a439a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次