解题方法
1 . 如图①是直角梯形
,
,
,
是边长为2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
面积的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099dd87a526391f830ac2a11e7d7ad56.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/b449f0e3-442c-4cc4-b75b-d909f81ba02c.png?resizew=281)
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2 . 如图,矩形
的对角线交于
,
,沿
把
折起,使二面角
为直二面角,则
在平面
的射影长度为______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7c4568006d967e25591ce8b71698a4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d04e2c5d8dcd0a7f42b7995d4ef32908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87106a631a7cd90e23fde041b9199e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7c4568006d967e25591ce8b71698a4.png)
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3 . 在菱形
中,
,
,将
沿
折起,使得点
到平面
的距离最大,此时四面体
的所有顶点都在同一球面上,则该球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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名校
解题方法
4 . 在四面体
中,
是边长为2的等边三角形,
平面
,且
,动点
,
分别在线段
(含端点)上和
所在平面中运动,满足
.记
的外心为
,则
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
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2023-10-22更新
|
291次组卷
|
2卷引用:上海市七宝中学2023-2024学年高二上学期10月月考数学试题
名校
解题方法
5 . 如图,在四棱锥
中,平面
平面
,底面
是矩形,
,
,
,点
是
的中点,则线段
上的动点
到直线
的距离的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e004715ae5b4f4a4272ed210ae460f4b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed66431681da1db8f7cb0f40cd19201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2023-10-10更新
|
593次组卷
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8卷引用:河南省洛阳市强基联盟2023-2024学年高二上学期10月联考数学试题
河南省洛阳市强基联盟2023-2024学年高二上学期10月联考数学试题河北省2023-2024学年高二上学期10月月考数学试题(已下线)1.4.2 用空间向量研究距离、夹角问题【第二练】山东省菏泽市鄄城县第一中学2023-2024学年高二上学期12月月考数学试题湖南省常德市临澧县第一中学2023-2024学年高二下学期入学考试数学试题江苏省泰州中学2023-2024学年高二下学期期中考试数学试题江苏省扬州市第一中学2023-2024学年高二下学期5月教学质量调研评估数学试题(已下线)第七章 应用空间向量解立体几何问题拓展 专题二 平面法向量求法及其应用 微点3 平面法向量求法及其应用综合训练【培优版】
名校
解题方法
6 . 在梯形
中,
,
,
,将
沿
折起,连接
,得到三棱锥
,当三棱锥
的体积取得最大值时,该三棱锥的外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
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2023-09-10更新
|
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9卷引用:湖北省孝感市部分学校2023-2024学年高二上学期9月起点考试数学试题
湖北省孝感市部分学校2023-2024学年高二上学期9月起点考试数学试题广东省汕尾市华大实验学校2023-2024学年高二上学期9月月考数学试题湖北省武汉市第四中学2023-2024学年高二上学期10月月考数学试题四川省南充市阆中市阆中中学校2023-2024学年高二上学期11月月考数学试题湖南省邵阳市邵东市第一中学2023-2024学年高二上学期12月月考数学试题(已下线)第11章 简单几何体(压轴必刷30题专项训练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)湖南省衡阳市第八中学2023-2024学年高二上学期期末考试数学试题四川省成都市石室天府中学2024届高三一诊模拟考试二数学(理)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13 多边形折叠成二面角模型【基础版】
名校
解题方法
7 . 三棱锥
中,
,
,
,平面
平面
,则三棱锥
的外接球直径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0795b26df9bc3be20c7ca49d7a662028.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
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2023-09-01更新
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2卷引用:黑龙江省哈尔滨市第三中学校2023-2024学年高二上学期开学测试数学试题
名校
解题方法
8 . 如图,在多面体
中,已知
,
,
,平面
平面
,四边形
是正方形,则点
到平面
的距离是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657d5471e57b894c3833bb3f43ff38ee.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/20/1d8233f1-01f2-4108-b616-35a0747baee0.png?resizew=164)
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2023-07-16更新
|
202次组卷
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2卷引用:江西省丰城拖船中学2023-2024学年高二上学期开学测试数学试题
名校
9 . 如图,三棱锥
中,平面
平面BCD,
是边长为2的等边三角形,
,
.若A,B,C,D四点在某个球面上,则该球体的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17580410bf63dba4fe164265afaac4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532aece6cfd67e2a97977eed978dbf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bcf905f3910d9238a44ef647835b3d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/7/c03902f3-ab7a-4d90-bd96-ec522c38bae4.png?resizew=200)
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2023-07-05更新
|
819次组卷
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7卷引用:四川省泸县第一中学2023-2024学年高二上学期开学考试数学试题
解题方法
10 . 在棱长为
的正方体
中,动点
在平面
上运动,且
,三棱锥
外接球球面上任意一点
到点
到的距离记为
,当平面
与平面
夹角的正切值为
时,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce066003c0a1f0879cbca2f32802e9b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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