名校
1 . 给出下面四个命题:
①过一个球的球心和球面上任意两个点,有且只有一个平面;
②若直线
直线
,直线
平面
,则直线
平面
;
③若直线
直线
,直线
直线
,直线
平面
,则直线
平面
;
④若直线
垂直于直线
在平面
内的射影,则直线
直线
.
则上述结论不正确 的有__________ .(填原号)
①过一个球的球心和球面上任意两个点,有且只有一个平面;
②若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edaf5492ffc6db02fd5968b643c8b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d29acfee233f0903449ca2da4960b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edaf5492ffc6db02fd5968b643c8b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
③若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0967ca2d04a7da2f6c95e0efe07fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0967ca2d04a7da2f6c95e0efe07fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103640e2dd6f0de98eb0a675dde1c72d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0967ca2d04a7da2f6c95e0efe07fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
④若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0967ca2d04a7da2f6c95e0efe07fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
则上述结论
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名校
2 . 如图,在矩形
中,
,
,
为
中点,现分别沿
、
将
、
翻折,使点
、
重合,记为点
,翻折后得到三棱锥
,则三棱锥
外接球的半径为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1507da3daed983c2f355d4caebb66d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941eba4dbc1094107e1eeb02c8d8cd56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613dedf2d90e58591b7ac4a250ac7b5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6830ebecddbd9759be626289c408e4f3.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://img.xkw.com/dksih/QBM/2023/11/18/3370675743244288/3371551595757568/STEM/c35b4fc7a36c437493f075c8f39860a4.png?resizew=310)
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解题方法
3 . 在三棱锥
中,
,
,
,且
,
,若该三棱锥的体积为
,则三棱锥
外接球的体积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f780afd52b9e0fb11a91933914f952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c956ac0eb05cf120e14f17413dfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b546d4123d061cd1bcd825455df62dbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8390b8e153b2338b6485552996aea6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c48a649fcc7057f6d7da5eb65e9db83a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f17ef2f38ffd644351cfeaae5ccbfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83dbfddc6f98548699ed581e8c8608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
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2023-11-16更新
|
857次组卷
|
3卷引用:湖北省武汉部分重点中学5G联盟2023-2024学年高二上学期期中联考数学试题
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解题方法
4 . 已知三棱锥
的侧棱长均为
,则顶点
到底面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ae3fbf168864d88ada8940a4362541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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解题方法
5 . 在菱形
中,
,
,
为菱形
所在平面
外一点,
,
,
到直线
距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284e282bb1d9fbf8634b3506ee5358ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e35f3a470885d88519e1a71db4b323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab2c27eac56fffa4cd7dbe1dcdf1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/62d05b4e-c3a3-42a1-a4de-d52b40509bf7.png?resizew=168)
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6 . 已知正方体的
棱长为2,点M,N分别是棱
,
的中点,点P在平面
内,点Q在线段
上,若
,则
长度的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a604466a9c8d10d557b3dfc43b547065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90dd18184d12e9c1d8d1fca40973166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/8c96f02a-0260-4495-9a16-4f17045a4ec3.png?resizew=146)
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2023-11-13更新
|
365次组卷
|
13卷引用:安徽省蚌埠第三中学2019-2020学年高二上学期期中数学(理)试题
安徽省蚌埠第三中学2019-2020学年高二上学期期中数学(理)试题福建省厦门市杏南中学2023-2024学年高二上学期11月期中阶段测试数学试题【全国百强校】山西省大同市第一中学2017-2018学年高二5月月考数学(理)试题广东省茂名市五校联盟2021届高三上学期第一次联考数学试题(已下线)类型二 空间点、线、面的位置关系-【题型突破】备战2022年高考数学二轮基础题型+重难题型突破(新高考专用)海南省文昌中学2022届高三4月段考数学试题北京市师大附中2022-2023学年高二上学期数学期末试题贵州省遵义市第二教育集团2021-2022学年高二上学期期末联考数学(理)试题人教B版(2019) 必修第四册 北京名校同步练习册 第十一章 立体几何初步 本章测试江西省泰和中学2023届高三一模文科数学试题江西省泰和中学2023届高三一模理科数学试题贵州省遵义市第二教育集团2021-2022学年高二上学期期末联考数学(文)试题(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点8 空间范围与最值问题综合训练
名校
解题方法
7 . 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
|
2卷引用:上海市七宝中学2024届高三上学期期中数学试题
8 . “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
9 . 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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10 . 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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