1 . 如图,已知二面角
的平面角为
,棱
上有不同的两点
,
,
,
.若
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754bbd99327195520a4ca3ce3b9a0577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7a3159579864a8ea0ab42005144864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bc14b78cdd59d30c0545059ee7b6ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ee0ddf2508e7f07ffbe5635033c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c638fb895acd987140d0ca6bef097499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0a2d7d40a6c0bf1fddb802db381689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9b9d23b4f8dd581461004689d0b863.png)
A.点![]() ![]() |
B.直线![]() ![]() ![]() |
C.四面体![]() ![]() |
D.过![]() ![]() |
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2 . 已知三棱锥
中,
平面
,
,三棱锥
的体积为
,则三棱锥的外接球的表面积为__________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464295184ce4c5b113a0a0aa22ab404f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fbbc8f521edab89a7e373287bcfbd9.png)
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2023-11-24更新
|
299次组卷
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3 . 已知三棱锥
的顶点都在球
的表面上,球
的表面积为
,在
中,
,
,则当三棱锥
的体积最大时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4d9a7c9b2ee0253a3a11d5117f9f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4fc2d383876afe5be1103352571805b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/469d483228c085a5291af8a31514d957.png)
A.4 | B.![]() | C.5 | D.![]() |
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2023-11-17更新
|
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4 . 如图,棱长为2的正方体
中,点
,
,
分别是棱
,
,
的中点,则( )
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.直线![]() ![]() |
B.直线![]() ![]() ![]() |
C.过点![]() ![]() ![]() ![]() |
D.三棱锥![]() ![]() |
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2023-11-17更新
|
471次组卷
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5 . 内接于球
的四棱锥
的底面
是等腰梯形,四条侧棱均相等,
,
,
,
,侧棱
与底面
所成角的大小为
,则球
的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6169cacf6c961ec78ccbd60db2726778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2023-11-11更新
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解题方法
6 . 某个圆柱体的表面积为
,则该圆柱体的外接球的表面积的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f64f3cf180549ad1f006994864399d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 如图,在边长为1的正方体
中,M为BC边的中点,下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/29/063c41da-1ab7-414c-b30d-7445d6a6b90e.png?resizew=154)
A.AM与![]() ![]() |
B.四而体![]() ![]() |
C.正方体![]() ![]() ![]() |
D.每条棱所在直线与平面![]() ![]() ![]() |
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2023-07-24更新
|
325次组卷
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2卷引用:湖北省武汉外国语学校2021-2022学年高二上学期期中数学试题
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8 . 已知底面为正方形的四棱锥
的五个顶点在同一球面上,
,
,则四棱锥
外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1599ea8823ac131035bc8e2935afd159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0252b8e3b3d4975409d48f66c867fc72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 在棱长为3的正方体
中,点
为侧面
内一动点,且满足
平面
,若
,三棱锥
的所有顶点均在球
的球面上,则球
的表面积为( )
![](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/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4e6e44c1bcd75b3dc46bebee96ac1a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa8fb73aa467b76c1b94d874e90af55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7462cd3e7522c4fec73e5b0e7c7b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023高三·全国·专题练习
10 . 四面体A﹣BCD中,AB=CD=5,
,
,则四面体A﹣BCD外接球的表面积为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a957b56a6d7d2cba6618df3ba4ab05d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57879d4e55f39132090e7456f585619.png)
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