名校
解题方法
1 . 已知四面体
中,
,则该四面体体积的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69ae7bac62b6630a40ae0466dd164d2.png)
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2023-11-12更新
|
317次组卷
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2卷引用:上海市七宝中学2024届高三上学期期中数学试题
2 . “直线
垂直于平面
内无数条直线”是“直线
垂直于平面
”的______ 条件.(用“充分非必要”、“必要非充分”、“充要”、“既非充分又非必要”填空)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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解题方法
3 . 如图所示,在棱长为1的正方体
中,则直线
到平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/8b2a3939-d251-4a0b-aeaf-8a73dcab11a5.png?resizew=147)
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4 . 如图,已知圆柱母线长为2,底面圆半径为1,
为下底面圆圆心,A,B是下底面圆周上的点,且
.若点C是圆柱表面上的动点,且满足
,则点C运动轨迹长为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff5c21185c13eae675906dabd3593c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91942670354affa8d52edadbcfa762bc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/bc6d7eb0-9746-4672-8958-0c527c0af695.png?resizew=104)
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解题方法
5 . 在棱长为1的正方体
中,点
满足
,其中
,
.给出下列四个结论:
①所有满足条件的点
组成的区域面积为1;
②当
时,三棱锥
的体积为定值;
③当
时,点
到
距离的最小值为1;
④当
时,有且仅有一个点
,使得
平面
.
则所有正确结论的序号为__________ .
![](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/ac6b545127bd51036a5a7b0d3cd5b320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e2e01346f60857ff635bb766802e57.png)
①所有满足条件的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2753dc1c83d54044b89e628a7eb247f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aab98011d732d4094e4e881b0bd2bd6.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76819195cffab10d81638dd673f3af98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e16f65c3a318220c2f5baac171bbb61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4704cbf3d2de2f06a6ee29b3c252109.png)
则所有正确结论的序号为
您最近一年使用:0次
解题方法
6 . 如图,在棱长为1的正方体
中,点
为
的中点,点
是侧面
上(包括边界)的动点,且
,给出下列四个结论:
①动点
的轨迹是一段圆弧;
②动点
的轨迹与
没有公共点;
③三棱锥
的体积的最小值为
;
④平面
截该正方体所得截面的面积的最大值为
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59afeab3e04712d52136c7cb24d859e7.png)
①动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
②动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67cb94f838ba180ac61a5f4bfebe5cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d7abf02717d6e59d8a64a65a87c412.png)
④平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212a67f115d1cbe69f100b489babe5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4700efcb84c4027ce7a50af0d5212fc.png)
其中所有正确结论的序号是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/22a2a715-51b0-4f2b-84c3-4761aafb6677.png?resizew=161)
您最近一年使用:0次
名校
解题方法
7 . 如图所示,已知三棱锥
中,底面
为等腰直角三角形,斜边
,侧面
为正三角形,D为
的中点,
底面
,则三棱锥
外接球的表面积为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c14a66ed4bd66df65bc42c4ac1ed15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb2e071d4e01107dcf7d95cbb86b415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/2ceca343-2c17-450c-ba9e-882dac415e42.png?resizew=150)
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2023-11-08更新
|
439次组卷
|
2卷引用:江西省铜鼓中学2024届高三上学期阶段性测试二数学试题
名校
解题方法
8 . 古代名著中的《营造法式》集中了当时的建筑设计与施工经验.下图1为《营造法式》中的殿堂大木制作示意图,其中某处木件嵌入处部分是底面为矩形的四棱锥
,如图2所示,其侧面
是边长为
的等边三角形,
,且平面
底面
,则该四棱锥的体积为_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9355bfefc563dfa1f06e9795ef91bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e5176c42b7d34a82c8248078581c1f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877582b5387278008d14fe5932622fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6d1d99afa158b4ba4fc0dae562fcc1.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在四棱锥
中,底面
是矩形,
为棱
的中点,且
为棱
上的一点,若
与平面
所成角的正弦值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1039601edd7326b628a3201a3d4af948.png)
__________ .
![](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/1c1768e994eab478314beb610cf13436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f022218ee8f8a1679cae7c733412c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5000fea066102e62cf2128ccbbd2b3e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1039601edd7326b628a3201a3d4af948.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/3ac40425-393d-454a-a9bf-72c90b0308d8.png?resizew=159)
您最近一年使用:0次
2023-11-03更新
|
709次组卷
|
4卷引用:辽宁省大连市第二十四中学2023-2024学年高二上学期期中数学试题
辽宁省大连市第二十四中学2023-2024学年高二上学期期中数学试题上海市宝山区上海交通大学附属中学2023-2024学年高二上学期12月数学卓越测试题(已下线)3.4.3 求角的大小(九大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)(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【基础版】
名校
解题方法
10 . 在四面体
中,
分别是棱
上的动点,且满足
均与面
平行,则四面体
被平面
所截得的截面面积的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc370185110025d06441442dad7954f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d557cce187e4dbbfb167ea71d92b012e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
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