2024高三·全国·专题练习
解题方法
1 . 如图,
的正方形纸片,剪去对角的两个
的小正方形,然后沿虚线折起,分别粘合AB与AH,ED与EF,CB与CD,GF与GH,得到一几何体Ω,记Ω上的棱AC与EG的夹角为a,则下列说法正确的是___________ .
;
②几何体Ω是六面体;
③几何体Ω的体积为
;
④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e329a94337ada7c88a4fad9b92f0eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d338f176b562d715d5741cf454b9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d37c334e0b3e43d11087a1c4880c1775.png)
②几何体Ω是六面体;
③几何体Ω的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
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2 . 已知菱形
中,对角线
交于点
,
,将
沿着
折叠,使得
,
,则三棱锥
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/2d578394cd8e4d7a705599269c512960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.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/79684a6e92297749c005e2b23cac9710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
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3 . 以正四棱锥的侧棱与底面所成角的正弦值为自变量
,则相邻两侧面所成角的正弦值与
的关系是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
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解题方法
4 . 三棱锥
中有四条棱长为
,另外两条棱长为
和2,则较长的两条棱所成的夹角为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
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5 . 已知表面积为
的球O的内接正四棱台
,
,
,动点P在
内部及其边界上运动,则直线BP与平面
所成角的正弦值的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d80f16c3278cd252725625dcf253cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54638dd4ebf19815a1333d84e42f927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1335dec9b6a1dcc7b18f7b3989c4cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
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2024-03-14更新
|
1173次组卷
|
4卷引用:广东省燕博园2024届高三下学期3月综合能力测试(CAT联考)数学试题
广东省燕博园2024届高三下学期3月综合能力测试(CAT联考)数学试题广东省佛山市南海西樵高级中学2024届高三下学期3月综合能力测试数学试题重庆市西南大学附属中学校2023-2024学年高三下学期全真模拟集训(一)数学试题(已下线)8.6.2 直线与平面垂直【第三练】“上好三节课,做好三套题“高中数学素养晋级之路
名校
解题方法
6 . 如图,在正方体
中,点
是平面
内一点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
平面
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c702e5202f179df8764b6663f997e00.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/e4f7d835-a671-41bb-b87d-437c47dc46b8.png?resizew=154)
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解题方法
7 . 如图,在四棱台
中,
,
,设
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/067613594cca07e73993d85045e8964f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e14b373f8f375c9cbf9e48b7b61f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eadbb07ec74fb4d27d1d5edce9dfb289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/21/391821ce-8ce7-4226-af9c-f42a49923aaf.png?resizew=164)
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解题方法
8 . 在三棱锥
中,
平面
,底面
是边长为
的正三角形,二面角
的大小为
,则该三棱锥的外接球的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d90f940f5693b22ddf2e7c761887d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39967d6f3aed6ce7b6643787795d451d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70682f6196e6c1a08eb48da73e8919ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
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2024-02-27更新
|
488次组卷
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6卷引用:1号卷·2022年高考最新原创信息试卷(二)理数
1号卷·2022年高考最新原创信息试卷(二)理数(已下线)第07讲 空间直线﹑平面的垂直(二)-《知识解读·题型专练》(已下线)高一下学期期中复习填空题压轴题十七大题型专练(2)-举一反三系列(人教A版2019必修第二册)(已下线)专题20 空间直线、平面的垂直-《重难点题型·高分突破》(人教A版2019必修第二册)(已下线)专题3.8 立体中的夹角和距离问题-重难点突破及混淆易错规避(人教A版2019必修第二册)(已下线)专题3.9 立体中的外接球和内切球-重难点突破及混淆易错规避(人教A版2019必修第二册)
9 . 已知正四面体
的棱长为2,
为
的中点,
为
中点,
是棱
上的动点,
是平面
内的动点,则当
取得最小值时,线段
的长度等于___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2977ae4bfa32de8c6f0fb136205c4fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb806883030a6fd2c6825c95b864421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
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