名校
解题方法
1 . 如图,在三棱台
中,平面
平面ABC,
,
,
.______ .
(2)若
,求三棱锥
外接球表面积______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986ba572d8373df48c996f8c8611498c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7d82423b6f211a7ac51a850b55e73a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27e47690ed332c573186992b6d25654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec435aa1401dbce7863b531bf2f3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c57d4c6ddf04ef6eaa2987378b434b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
您最近一年使用:0次
2024·全国·模拟预测
解题方法
2 . 已知四棱锥
的底面
是边长为
的正方形,
,
平面
,
为线段
的中点,若空间中存在平面
满足
,
,记平面
与直线
分别交于点
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90271643a96d65b3b092fbbdbd61eea0.png)
______ ,四边形
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967f74b8993c61634ceed95edca05ffd.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3dd3fc7dc95d1af9eafb1ea58dd48a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e049faf8852317b6c046904a39134c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a211a44ffb09c7413dac58e9cea70fd9.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/90271643a96d65b3b092fbbdbd61eea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a255eabf4d401236e1f1a9f35667ba9.png)
您最近一年使用:0次
解题方法
3 . 如图①是直角梯形
,
,
,
是边长为1的菱形,且
,以
为折痕将
折起,当点
到达
的位置时,四棱锥
的体积最大,
是线段
上的动点,则
到
距离最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cfd06965af6014208127f2880b476b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ff27eea7545bb06f9472f91290c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e557ac8c744f9961a6d544a75321e8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1e038b4e76b3a368731d3331522b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2eb89294b31ffdd2680b4361e8994d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/2558bc6f-19b0-42fa-a166-3e398b147d6a.png?resizew=347)
您最近一年使用:0次
名校
4 . 如图所示,在梭长为6的正方体
中,点
是平面
内的动点,满足
,则直线
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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e975f6c9fafab8fd7639dc0cd0f70a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74769e4e9f9570aeca28ffd14c168e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c798204bbe306b3efd5bc9eae594c171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e975f6c9fafab8fd7639dc0cd0f70a4.png)
您最近一年使用:0次
2024-03-12更新
|
541次组卷
|
2卷引用:上海交通大学附属中学2023-2024学年高二下学期摸底数学试卷
5 . 已知三棱锥
,
面
,
,
交
于
,
交
于
,
,记三棱锥
,四棱锥
的外接球的表面积分别为
,
,当三棱锥
体积最大时,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfa54114f04a75b8c96165b3718ed7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4486d52b6e410fd7b60428121d96cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b200cb65843fe03aab377d53991d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9187c2852c14221b0a0ea0351267ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b200cb65843fe03aab377d53991d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,在四棱柱
中,底面ABCD为正方形,
,
,
,且二面角
的正切值为
.若点P在底面ABCD上运动,点Q在四棱柱
内运动,
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8c9f7fed2c234eaf803f1c6c9d2906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998828b0a9c797dcff1929cefeaf5f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c96647c4db93127c7ba74c42de51c33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2829c1998a2ca0acb6779afe3af5bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51590ba53a365210d9a3005966b7868d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/699dc6df-4bf5-4934-8ecd-4cee2ba5fe5e.png?resizew=178)
您最近一年使用:0次
2024-01-16更新
|
781次组卷
|
4卷引用:广东省揭阳市2024届高三上学期期末教学质量测试数学试题
广东省揭阳市2024届高三上学期期末教学质量测试数学试题江苏省南京市南京师大附中2024届高三寒假模拟测试数学试题(已下线)第四章 立体几何解题通法 专题一 降维法 微点4 降维法综合训练【基础版】(已下线)高一下学期期中数学试卷(提高篇)-举一反三系列
解题方法
7 . 若
是棱长为
的正四面体
内一点,以
在四面体
的四个面上的射影为顶点的新四面体的体积的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94dbe9b1953ebfd11fc9c452d237321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c086edbf6e575465265662956df593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82802218706a07a4482876b25d0f8705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94dbe9b1953ebfd11fc9c452d237321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82802218706a07a4482876b25d0f8705.png)
您最近一年使用:0次
名校
8 . 在三棱锥
中,
平面
,
,
,则三棱锥
外接球表面积的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d55f04e36983c3eac152f8006f3cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df01d40611ad128b314244ac8090cd95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
您最近一年使用:0次
2023-11-18更新
|
1098次组卷
|
6卷引用:辽宁省大连市育明高级中学2023-2024学年高三上学期期中数学试题
辽宁省大连市育明高级中学2023-2024学年高三上学期期中数学试题广东省中山市第一中学2024届高三第一次调研数学试题浙江省名校协作体2023-2024学年高二下学期开学适应性考试数学试题(已下线)第二章 立体几何中的计算 专题六 几何体的外接球、棱切球、内切球 微点10 切瓜模型综合训练【基础版】(已下线)第5题 立体几何中以外接球为背景的最值问题(压轴小题)(已下线)第13章 立体几何初步 章末题型归纳总结 (1)-【帮课堂】(苏教版2019必修第二册)
9 . 如图,在直三棱柱
中,
,
,
,
,
.记
,给出下列四个结论:
①对于任意点H,都不存在点P,使得平面
平面
;
②
的最小值为3;
③当
取最小时,过点A,H,P作三棱柱的截面,则截面面积为
;
④满足
的点P有无数个.
其中所有正确结论的序号是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a42d925639622157cdecb660f1825e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e9a09c909a429631570ccd3e5c74d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492ea7cdba18ed18720f39d86fc4ed38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ca8fc052439953a9bf7b97a18714ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/22/77a4e537-e1c1-4946-b40c-81dd88ea9281.png?resizew=144)
①对于任意点H,都不存在点P,使得平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df867532932728d76021986a0cd34d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304fa80bd78f6cc529c83d481c0b7ba5.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72df651e67c045ea5d886abef4c2165.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72df651e67c045ea5d886abef4c2165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed24aeda4260685f4e1bd6b78a8ff25.png)
④满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e387e85d1905f82a2a80350790ecb1.png)
其中所有正确结论的序号是
您最近一年使用:0次
2023-11-02更新
|
566次组卷
|
2卷引用:北京一零一中2023-2024学年高二上学期期中考试数学试题
解题方法
10 . 如图,已知菱形中,
为边
的中点,将
沿
翻折成
(点
位于平面
上方),连接
和
为
的中点,则在翻折过程中,
与
的夹角为
的轨迹的长度为
您最近一年使用:0次
2023-11-01更新
|
664次组卷
|
3卷引用:重庆市名校联盟2023-2024学年度高二上学期期中联考数学试题
重庆市名校联盟2023-2024学年度高二上学期期中联考数学试题山东省普高大联考2023-2024学年高二上学期11月期中联合质量测评数学试卷(已下线)第三章 折叠、旋转与展开 专题一 平面图形的翻折、旋转 微点2 翻折、旋转中的基本问题(二)