解题方法
1 . 已知正四棱锥
的底边长为2,高为2,且各个顶点都在球
的球面上,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.直线![]() ![]() ![]() |
B.平面![]() ![]() ![]() |
C.球![]() ![]() |
D.球心![]() ![]() ![]() |
您最近一年使用:0次
解题方法
2 . 在矩形
中,
,
是
的中点,沿
将
折起至
,使得
,则此时三棱锥
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/f80f51c31583fea58fde645474d60b8a.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c383691e8d740830a865b12d66f7633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e487e5f7668a781df7cd50acf7c1318c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/b3334d4d-0f8c-4e2a-9ccf-74f2e933391d.png?resizew=181)
您最近一年使用:0次
名校
解题方法
3 . 如图1,《卢卡•帕乔利肖像》是意大利画师的作品.图1中左上方悬着的是一个水晶多面体,其表面由18个全等的正方形和8个全等的正三角形构成,该水晶多面体的所有顶点都在同一个正方体的表面上,如图2.若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/056c2272e0d10d6dd9706e6324d8e62d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/7/e2766f47-dfba-470c-a91c-9c5dd8604653.png?resizew=354)
A.![]() |
B.该水晶多面体外接球的表面积为![]() |
C.直线![]() ![]() ![]() |
D.点![]() ![]() ![]() |
您最近一年使用:0次
2023-08-03更新
|
584次组卷
|
4卷引用:山西省长治市2022-2023学年高二下学期期末数学试题
解题方法
4 . 在四面体ABCD中,
,则四面体的外接球的体积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e37ba945e5bcdcac1fd49fd29e9070d.png)
您最近一年使用:0次
5 . 如图1,在边长为2的正方形
中,
,
,
分别为
,
,
的中点,沿
、
及
把这个正方形折成一个四面体,使得
、
、
三点重合于
,得到四面体
(如图2).下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/922dae27e2bef111979574e15de3a4cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/9/b57ebb3f-c7b4-4805-ac18-7b7942bb7c0a.png?resizew=280)
A.顶点![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.二面角![]() ![]() |
D.过点![]() ![]() ![]() |
您最近一年使用:0次
解题方法
6 . 在长方体
中,
,
,
,
,
分别是棱
,
,
的中点,
是底面
内一动点,满足
平面
,当
最短时,三棱锥
外接球的体积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.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/7642a6f1cf111e2aa56980e5a55bbd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16384e20db8a965fa73fc2d9f48a4017.png)
您最近一年使用:0次
名校
7 . 在三棱锥
中,
底面
,
,
,若三棱锥
外接球的表面积为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0818189bf38d1c438d65a484e38b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba9378daff2eaac03ef5c8d3ad26258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b51733ec6a4a8f02e00854fc75b8987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-06-18更新
|
1522次组卷
|
8卷引用:山西省应县第一中学校2022-2023学年高二下学期期末数学试题
解题方法
8 . 已知正四棱柱
的底面边长为2,侧棱
,P为上底面
上的动点,M为棱
的中点,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
A.三棱锥![]() |
B.当直线![]() ![]() ![]() ![]() |
C.若直线![]() ![]() ![]() ![]() ![]() |
D.直线![]() ![]() ![]() |
您最近一年使用:0次
2023-02-03更新
|
302次组卷
|
3卷引用:山西省太原市2023届高三上学期期末数学试题
山西省太原市2023届高三上学期期末数学试题山西省运城市稷山县稷王中学等3校2023届高三上学期期末数学试题(已下线)湖北省武汉市(武汉六中)部分重点中学2024届高三第二次联考数学试题变式题11-16
名校
解题方法
9 . 已知直三棱柱
中,
是
的中点,
为
的中点.点
是
上的动点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/31a94d6d-66be-4717-bf2a-889a9f2c967d.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c3a03829860d2bdaf84119a91cb7be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/31a94d6d-66be-4717-bf2a-889a9f2c967d.png?resizew=164)
A.无论点![]() ![]() ![]() |
B.当直线![]() ![]() ![]() ![]() |
C.若三棱柱![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2023-01-10更新
|
724次组卷
|
6卷引用:山西省吕梁市2023届高三上学期期末数学试题
名校
10 . 如图,已知长方体
的体积为16,
,
与
相交于点
,则三棱锥
的外接球的表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/1e3b17cd-8a7b-431f-986c-54d5b19c593d.png?resizew=211)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f148cb8cfc06b8794c65f5de1307f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b565e518d475a50358fedff2f0bb8dec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/1e3b17cd-8a7b-431f-986c-54d5b19c593d.png?resizew=211)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-12-27更新
|
308次组卷
|
2卷引用:山西省晋城市泽州县晋城一中教育集团南岭爱物学校2022-2023学年高二上学期1月期末调研考试数学试题