名校
解题方法
1 . 如图,正八面体
棱长为1,M为线段
上的动点(包括端点),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9525b907b273968b385a761ed8dcdea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c663c62644f563a01d5ae7b8c4d4c350.png)
A.![]() | B.![]() ![]() |
C.当![]() ![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 已知正方体
的顶点均在半径为1的球
表面上,点
在正方体
表面上运动,
为球
的一条直径,则正方体
的体积是____________ ,
的范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8eb37a4dd75318dcbd836395e575bd.png)
您最近一年使用:0次
名校
3 . 如图,在平行四边形
中,
,
,且
交
于点
,现沿折痕
将
折起,直至折起后的
,此时
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019e0ac78dac247c179339fdf10605d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99815b86a6a44274b28393750c545249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51b89f545616ef48f3706850107ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
您最近一年使用:0次
2024-05-22更新
|
224次组卷
|
2卷引用:河南省九师联盟2024届高三下学期5月联考数学试题
解题方法
4 . 已知棱长为1的正方体
,以正方体中心为球心的球
与正方体的各条棱相切,若点
在球
的正方体外部(含正方体表面)运动,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 已知球O内切于正四棱锥
,
,EF是球O的一条直径,点Q为正四棱锥表面上的点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a183c9577e8730b7962f75fc3f6e0c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 已知二面角
的大小为
,
,
,且
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6d1c5eace748465b2dad5065f5111c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf10d92f20501e19d25f6f4159aab89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9c7cbcc38b28d45c8539710e5b260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec1daa1858ccc26751fd3b48099c54c.png)
A.![]() | B.异面直线AD与BC可能垂直 |
C.线段AB长度的取值范围是![]() | D.四面体![]() ![]() |
您最近一年使用:0次
7 . 平行六面体
中,
,
,
,动点
在直线
上运动,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29325f51647dde45ffa565600d353d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e90a1c4f1c3f38cb2f2adfc9cbea3ee.png)
您最近一年使用:0次
解题方法
8 . 在正三棱台中,下列结论正确的是( )
A.![]() | B.![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 如图,平行六面体
中,
分别为
的中点,
在
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/94616061-bf76-46ab-99da-9b735c5ae156.png?resizew=188)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
平面
;
(2)若
平面
,求平面
与平面
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ae536809b1161fd4e83fdc7f42be96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548d64146122e344b7d30bf0dbedb374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1859959fdb4c5edd8056893f94a10a0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/94616061-bf76-46ab-99da-9b735c5ae156.png?resizew=188)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba9e20d667d04bf3ee7f55cc795ce01.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bdae41b55a363ec99d18d80a431d1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481dfd21e76d5039750bda168fc76ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecf35bb2453db07d66391f501fa7a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
您最近一年使用:0次
2024-03-29更新
|
1175次组卷
|
2卷引用:云南省2024届高三第一次高中毕业生复习统一检测数学试题
解题方法
10 . 如图,在平行四边形中,
,
,且EF交AC于点G,现沿折痕AC将
折起,直至满足条件
,此时EF的长度为
您最近一年使用:0次