名校
1 . 如图,四棱锥P﹣ABCD的底面是梯形.BC∥AD,AB=BC=CD=1,AD=2,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f9efada515904b015baa8e2fc1b8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/bd80ff47-3d74-46af-9200-fe32847a61d5.png?resizew=177)
(Ⅰ)证明;AC⊥BP;
(Ⅱ)求直线AD与平面APC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96ac79190e1b93c16b5d00a1b516281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f9efada515904b015baa8e2fc1b8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/bd80ff47-3d74-46af-9200-fe32847a61d5.png?resizew=177)
(Ⅰ)证明;AC⊥BP;
(Ⅱ)求直线AD与平面APC所成角的正弦值.
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2020-03-22更新
|
930次组卷
|
7卷引用:2020届浙江省杭州二中高三上学期返校考试数学试题
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名校
解题方法
2 . 一个几何体的三视图如图所示,其中俯视图为正方形,则该几何体的侧面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f3b91b89-aea1-4c36-b4fa-e8a598fed968.png?resizew=250)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f3b91b89-aea1-4c36-b4fa-e8a598fed968.png?resizew=250)
A.![]() | B.![]() | C.![]() | D.6 |
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3 . 已知在等腰梯形
中,
,
,
、
分别为线段
与
的中点,现将四边形
沿直线
折成一个五面体
(如图).
![](https://img.xkw.com/dksih/QBM/2019/12/25/2368402750291968/2425269427150848/STEM/4962f2b8c41741348836c8b04c022ada.png?resizew=315)
(1)在线段
上是否存在点
,使
平面
.若存在,找出点
的位置;若不存在,说明理由;
(2)若二面角
的大小为
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e7502d9ae80577f31638395b64cc901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95a575a5e5ce40ae7d70d18b0a36c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2964dd83b446bad9004e5037d466d62.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/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1bcc181aa254e91bfc333c966e4637d.png)
![](https://img.xkw.com/dksih/QBM/2019/12/25/2368402750291968/2425269427150848/STEM/4962f2b8c41741348836c8b04c022ada.png?resizew=315)
(1)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39284c1ef4a749b8683a7c79c4246672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69856a547e733af483753a1dc51f47bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
您最近一年使用:0次
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解题方法
4 . 某几何体的三视图如图所示,则该几何体的体积是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/e667a958-68e2-40fa-9873-dbff2da36967.png?resizew=317)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/e667a958-68e2-40fa-9873-dbff2da36967.png?resizew=317)
A.64 | B.72 | C.78 | D.80 |
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5 . 如图,在直三棱柱ABC﹣A1B1C1中,∠BAC=90°,AB=AC=AA1.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/68830015-a59f-4b0a-a322-6dca3755fd59.png?resizew=174)
(1)求证:AB1⊥平面A1BC1;
(2)若D在B1C1上,满足B1D=2DC1,求AD与平面A1BC1所成的角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/68830015-a59f-4b0a-a322-6dca3755fd59.png?resizew=174)
(1)求证:AB1⊥平面A1BC1;
(2)若D在B1C1上,满足B1D=2DC1,求AD与平面A1BC1所成的角的正弦值.
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解题方法
6 . 一个长方体被一个平面截去一部分后,剩余部分的三视图如图所示,则该几何体与原长方体的体积之比是_____ ,剩余部分表面积是_____ .
![](https://img.xkw.com/dksih/QBM/2020/3/12/2417948746809344/2422761459957760/STEM/dc91422ca9654c648a1d83bc64cb5fb7.png?resizew=215)
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7 . 如图,在三棱锥
中,已知
平面
,
,且
,设
是棱
上的点(不含端点).记
,
,二面角
的大小为
,则( )
![](https://img.xkw.com/dksih/QBM/2020/3/4/2412315522064384/2412573219201024/STEM/e5bd52a4d4d6468d8ad3b503b99aad75.png?resizew=182)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd654221ab95fe241d9e0202443f2609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f7aaebfd31d350b0ffe1cfd60e261d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482002db587fa5dcc33454ebe5ace500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e433babe99eb5d65e9e5d50978f3d2f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://img.xkw.com/dksih/QBM/2020/3/4/2412315522064384/2412573219201024/STEM/e5bd52a4d4d6468d8ad3b503b99aad75.png?resizew=182)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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8 . 设
、
、
是三个不重合的平面,
、
是两条不重合的直线,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
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9 . 在直角坐标系平面内,动直线
与动直线
相交于点
,则点
的轨迹方程是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032cd48e576afc7afc39c329623a14cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1408230172d7e0efc5a4825dbc378324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2020-03-13更新
|
475次组卷
|
2卷引用:浙江省宁波市六校2019-2020学年高二上学期期末数学试题
解题方法
10 . 一个三棱锥的正视图和侧视图及其尺寸如图所示(均为直角三角形),则该三棱锥的表面积为____________ ,该三棱锥的体积为____________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/7b6ca3fc-3ed0-4368-8f1b-b7e484140aee.png?resizew=144)
您最近一年使用:0次