2020高三·全国·专题练习
解题方法
1 . 《九章算术》中将底面为矩形、一条侧棱垂直于底面的四棱锥称为“阳马”,将底面是直角三角形的直三棱柱称为“堑堵”.已知某“阳马”和某“堑堵”的组合体的三视图如图所示,则该几何体的表面积为( )
![](https://img.xkw.com/dksih/QBM/2021/1/16/2637226326556672/2637400275419136/STEM/52063997-d59d-4f26-8836-64a90a137c97.png?resizew=176)
![](https://img.xkw.com/dksih/QBM/2021/1/16/2637226326556672/2637400275419136/STEM/52063997-d59d-4f26-8836-64a90a137c97.png?resizew=176)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 一个球被平面截下的一部分叫做球缺,截面叫做球缺的底面,垂直于截面的直径被截下的线段长叫做球缺的高,球缺的体积公式为V=
,其中R为球的半径,h为球缺的高.若一球与一棱长为2的正方体的各棱均相切,则该球与正方体的公共部分的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee7017c3cb66ba4a9bd84d1e3c54ca5.png)
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2021-05-07更新
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3卷引用:安徽省马鞍山市2021届高三下学期第二次教学质量监测文科数学试题
3 . 如图,四棱锥
中,
,
,
,
为
中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/a23f08b5-a545-4dfa-8609-21fdeb1f6071.png?resizew=207)
证明:平面
平面
;
若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaef9e92d148afff22761d5e027d3ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ea9d92e5c258a50af1e461c7388894.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/a23f08b5-a545-4dfa-8609-21fdeb1f6071.png?resizew=207)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d96357a07048ba79b8c84097d359d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d906ee0d60f3f4654fb516fe4973413.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b200cb65843fe03aab377d53991d7.png)
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2019-04-23更新
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2卷引用:【市级联考】安徽省马鞍山市2019届高三一模数学(文科)试题
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解题方法
4 . 如图,在棱长为1的正方体
中,
,
分别是棱
,
上的动点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/e782a007-0e62-4809-ab7b-95ff1904ba4e.png?resizew=204)
(1)证明:
;
(2)当三棱锥
的体积取得最大值时,求平面
与平面
的夹角正切值.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/e782a007-0e62-4809-ab7b-95ff1904ba4e.png?resizew=204)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e7c16fcd117047c6c81ab37118e4c5.png)
(2)当三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d572b24c3b4549b7fd579d5706c5970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bff3ccea5989c60e51e321af3f53f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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5 . 如图,网格纸上小正方形的边长为1,粗实线画出的是某组合体的三视图,则该几何体的表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/14d79728-b876-4ff8-946f-d48f02387ce2.png?resizew=151)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/14d79728-b876-4ff8-946f-d48f02387ce2.png?resizew=151)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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2019-05-09更新
|
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|
2卷引用:【全国百强校】安徽省马鞍山市第二中学2019届高三下学期模拟考试文科数学试题
6 . 已知正方形ABCD的边长为4, E是BC的中点,沿DE把△DCE折起,使点C到达点F的位置,且BE⊥FE,则三棱锥F-ABE的外接球的表面积为___ .
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2021-02-04更新
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2卷引用:安徽省马鞍山市2020-2021学年高三上学期第一次教学质量监测理科数学试题
7 . 如图,半径为
的球的两个内接圆锥有公共的底面,若两个圆锥的体积之和为球的体积的
,则这两个圆锥高之差的绝对值为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/819f22c0-f64b-4695-a83b-06e8e8863a73.png?resizew=149)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ee3c61d2298e75fc4f1643f8ebc2e4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/819f22c0-f64b-4695-a83b-06e8e8863a73.png?resizew=149)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2019-04-17更新
|
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2卷引用:【市级联考】安徽省马鞍山市2019年高中毕业班第二次教学质量监测理科数学试题
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解题方法
8 . 如图,在棱长为2的正方体
中,
,
分别为棱
,
的中点,给出下列五个命题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/0370afaa-7aec-4ca8-89df-92e587e4d907.png?resizew=208)
①
,
所成的角为
;
②
;
③三棱锥
的外接球的表面积为
;
④平面
截正方体所得的截面是等腰梯形;
⑤以点
为球心,
为半径作球面,则该正方体表面被球面所截得的所有弧长的和为
;
其中真命题是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/0370afaa-7aec-4ca8-89df-92e587e4d907.png?resizew=208)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d456847f7a9db41ffb1486e2cfe580d7.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5315b0db36b8716f3de7336120384fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4986217611fc5eefe70fd217a9d5726a.png)
④平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212a67f115d1cbe69f100b489babe5f8.png)
⑤以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c055a02fba0827ffcaa92f73ce7720.png)
其中真命题是
您最近一年使用:0次
2021-05-07更新
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2卷引用:安徽省马鞍山市2021届高三下学期第三次教学质量监测文科数学试题
9 . 如图,在三棱锥
中,二面角
是直二面角,若
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fe532cad7a1f9279d58874aa4def00.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/e4547a4f-4675-47a8-8d6f-f512d8c04a8f.png?resizew=150)
(Ⅰ)求三棱锥
的体积;
(Ⅱ)求点
到
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1854ba6cc92481d7a616bd2788a47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b107b118778650bdc523229900256418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fe532cad7a1f9279d58874aa4def00.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/e4547a4f-4675-47a8-8d6f-f512d8c04a8f.png?resizew=150)
(Ⅰ)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
(Ⅱ)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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2卷引用:安徽省马鞍山市第二中学2019-2020学年高二上学期期末数学(文)试题
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10 . 在《九章算术》中,将底面为长方形且有一条侧棱与底面垂直的四棱锥称之为阳马.若四棱锥
为阳马,侧棱
底面
,且
,则该阳马的外接球与内切球表面积之和为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4117625867a74cd022584500c76deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39967d6f3aed6ce7b6643787795d451d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe0de10746d52ac1fbf2280eac66593.png)
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8卷引用:安徽省马鞍山市中加学校2018届高三上学期期中模拟考试数学(理科)试题
安徽省马鞍山市中加学校2018届高三上学期期中模拟考试数学(理科)试题衡水金卷2018届全国高三大联考文科数学试题辽宁省凌源二中2018届高三三校联考文数试题河北省衡水中学2018届高三9月大联考数学(文)试题江西省临川市第二中学2018届高三上学期第五次月考数学(文)试题江西省临川二中2018届高三上学期第五次月考数学(文)试题(已下线)模块六 立体几何 大招15 内切球之棱锥模型(已下线)第二章 立体几何中的计算 专题六 几何体的外接球、棱切球、内切球 微点18 几何体的内切球、棱切球综合训练【基础版】