名校
1 . 圆锥的表面积是底面积的4倍,那么该圆锥的侧面展开图扇形的圆心角为( )
A.120° | B.135° | C.150° | D.180° |
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解题方法
2 . 在如图的空间几何体中,四边形
为直角梯形,
,
,
,
,
,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/2021/1/4/2628765899325440/2633008730619904/STEM/4e81f00fa61a4a69a6860cec3bf631af.png?resizew=195)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c42bce098904b241986bb91c65ab33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78192b9e9d4e38175e840233749443bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f98f2f71e43a9ec16c40225b747f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936c74c9a7edc81c037f4ea795d130bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857179c40f652375d1180be480771117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce800ada0934832b028ccebb2a81637d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/2021/1/4/2628765899325440/2633008730619904/STEM/4e81f00fa61a4a69a6860cec3bf631af.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade68d3f913ba0357f38a808392f5820.png)
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解题方法
3 . 四棱锥
中,底面
是一个平行四边形,
,
,
.
(1)求证:
底面
;
(2)求四棱锥
的体积;
(3)对于向量
,
,
,定义一种运算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd62341d151e86286a6ec4eedb91f1c5.png)
,试计算
的绝对值的值;说明其与四棱锥
体积的关系,并由此猜想向量这种运算
的绝对值的几何意义.
![](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/b7fbe00dd71715aa19db715ac7bea737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c4ae4c416a1cffa747dcf8aa4fa818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53cc3bce25b374a29d7e35259984f96.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(3)对于向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c31740a23f1b588a53f994a0b7a173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a273e4f37c9064ba69cebd06917108c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eed24c5539e36c98d8e31ad7af6b0ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd62341d151e86286a6ec4eedb91f1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d388928d22715874e4f818f96784f872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dfd98323438c6c7b5a41f19e3e6c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dfd98323438c6c7b5a41f19e3e6c2a.png)
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2021-01-09更新
|
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8卷引用:高中数学人教A版选修2-2 综合复习与测试(6)
高中数学人教A版选修2-2 综合复习与测试(6)高中数学人教A版选修2-2 综合复习与测试(3)上海市曹杨第二中学2018-2019学年高二上学期期末复习试卷2数学试题甘肃省甘南藏族自治州卓尼县第一中学2019-2020学年高二下学期期末数学理科试题高中数学解题兵法 第一百十四讲 阅读、迁移沪教版(2020) 选修第一册 单元训练 第3章 单元测试3.4.1直线的方向向量与平面的法向量(习题)-2021-2022学年高二上学期数学北师大版(2019)选择性必修第一册(已下线)第3章 空间向量及其应用【单元提升卷】-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
名校
解题方法
4 . 如图,正方体
的棱长为2,E,F分别为
,
的中点,则以下说法错误 的是( )
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629473603403776/2632620019998720/STEM/282bbf35-9edc-4b41-9169-4fd34dbe41fa.png?resizew=236)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629473603403776/2632620019998720/STEM/282bbf35-9edc-4b41-9169-4fd34dbe41fa.png?resizew=236)
A.N为![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.三棱锥![]() ![]() |
D.![]() ![]() |
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5 . 已知直三棱柱的侧棱长为2,底面三角形的边长分别为3,4,5,且三棱柱的所有顶点在同一个球面上,则该球的表面积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 如图所示几何体
,
是边长为2的菱形,
,
平面
,
平面
,且
.
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629710862786560/2632616001404928/STEM/73eb5503-2e60-447d-85ae-ab3755e84053.png?resizew=220)
(1)求
的体积;
(2)求证平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fc1129846f37afdafd751627c450d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed04b01505bbd8a4ac0bc12e46f23bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b5a90e556da12d63b7f481bd8e874c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd22bc9d12ac26a140d35242bbf1f7bd.png)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629710862786560/2632616001404928/STEM/73eb5503-2e60-447d-85ae-ab3755e84053.png?resizew=220)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9993554f502b5b67dd8756ad1e1d586e.png)
(2)求证平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
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解题方法
7 . 中国古典数学名著《九章算术》中记载了公元前344年商鞅督造一种标准量器——商鞅铜方升,其三视图如图所示(单位:寸),则此商鞅铜方升的体积为(立方寸)( )
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629710862786560/2632616001101824/STEM/fe4e3527baca4c0ebcb1b1693546429a.png?resizew=295)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629710862786560/2632616001101824/STEM/fe4e3527baca4c0ebcb1b1693546429a.png?resizew=295)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
解题方法
8 . 如图,在四棱锥
中,底面
为平行四边形,
,
,
,
,且
平面
.
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629459202932736/2632551819411456/STEM/e807eea2553a4788b909c59700c35148.png?resizew=158)
(1)证明:
平面PBD;
(2)若Q为PC的中点,求三棱锥
的体积.
![](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/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300ee27f04188cb8ee5e20394c8f50fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629459202932736/2632551819411456/STEM/e807eea2553a4788b909c59700c35148.png?resizew=158)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
(2)若Q为PC的中点,求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d66e1d92738b032b5d99a5311d92a3b.png)
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解题方法
9 . 如图所示,已知四棱锥
中,侧面
为等边三角形,平面
平面
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/4d97a037-b62f-43a8-891c-49c4b17b66af.png?resizew=196)
(1)求证:
;
(2)若
,把
沿
折起至
,使平面
平面
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8909f9d057938acda65700d967a2799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ad8d16722f5b9e7fd2602f14d5ffbe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/4d97a037-b62f-43a8-891c-49c4b17b66af.png?resizew=196)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44f4120c94cb7176dc31fcac387b32e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02dd7f88976eb5975d31b410d0d973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc9dd0b5f998f5a179a79c13039da41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6132a7910fb9f75a78ac5d8a1fa128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d046b777aea1124bc8f305f9e8ac81e.png)
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2021-01-09更新
|
114次组卷
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2卷引用:河南省八市重点高中2020-2021学年高三上学期12月质量检测文科数学试题
名校
10 . 设长方体的长、宽、高分别为
,a,a,其顶点都在同一个球面上,则这个球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-09更新
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802次组卷
|
3卷引用:安徽省合肥市第六中学2020-2021学年高二上学期诊断性测试数学(文)试题