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解题方法
1 . 如图,将两个全等等腰直角三角形拼成一个平行四边形ABCD,将平行四边形ABCD沿对角线BD折起,使平面
平面BCD,则直线AC与BD所成角正弦值为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
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3卷引用:辽宁省铁岭市清河高级中学2021-2022学年高二上学期第一次阶段考试数学试题
辽宁省铁岭市清河高级中学2021-2022学年高二上学期第一次阶段考试数学试题第八章 立体几何初步(单元测试)-2022-2023学年高一数学同步精品课堂(已下线)第13章 立体几何初步(提升卷)-重难点突破及混淆易错规避(苏教版2019必修第二册)
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2 . 将边长为2的正方形
沿对角线
折成直二面角
,现有如下4个命题:
①异面直线
与
所成的角为60°;②
是直角三角形;
③
的面积为
;④四面体
的外接球的表面积为
.
上述命题正确的是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1854ba6cc92481d7a616bd2788a47e.png)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4986217611fc5eefe70fd217a9d5726a.png)
上述命题正确的是
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3卷引用:江西省宜春市上高二中2021-2022学年高二上学期10月月考数学(理)试题
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3 . 如图,已知三棱柱
,平面
平面
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224626bd7f62223e40b98c50124b82cd.png)
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/2021/10/21/2834157104824320/2836432433356800/STEM/5cd69119-c4bf-4833-9313-c34da4ab43a9.png?resizew=315)
(1)证明:
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2f39d3fcb1664705228e683c2cc3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5db30bb3d52a2781a8159ab1c76deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224626bd7f62223e40b98c50124b82cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/227c1d105f7abf228e7a4f3097ae93f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba75ab97c8b4bb1f6cd7613d7532a5c3.png)
![](https://img.xkw.com/dksih/QBM/2021/10/21/2834157104824320/2836432433356800/STEM/5cd69119-c4bf-4833-9313-c34da4ab43a9.png?resizew=315)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc90fee532e50d319081d571410421.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7e8dd831f4edc711c0f7d5f078f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
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解题方法
4 . 在直三棱柱
中,
,
,
,点D是侧棱
的中点,则异面直线
与直线
所成的角大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ecad355286188fd317939fa50f9555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4卷引用:江西省九江市第一中学2021-2022高二上学期第一次月考数学(理)试题
江西省九江市第一中学2021-2022高二上学期第一次月考数学(理)试题(已下线)专题9.5—立体几何—异面直线所成的角1—2022届高三数学一轮复习精讲精练(已下线)8.4 空间点、直线、平面之间的位置关系(精练)-2021-2022学年高一数学一隅三反系列(人教A版2019必修第二册)黑龙江省哈尔滨市双城区兆麟中学2020-2021学年高三上学期期中考试数学(理科)试题
5 . 如图,在正方体
中,点E是线段
上的动点,则下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/41f5919f-ff33-4683-97d4-04ed38f8cb61.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/41f5919f-ff33-4683-97d4-04ed38f8cb61.png?resizew=156)
A.当点E与点![]() ![]() |
B.若异面直线![]() ![]() ![]() ![]() |
C.无论点E在线段![]() ![]() |
D.当点E与线段![]() ![]() ![]() |
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解题方法
6 . 如图,在三棱柱ABC-A1B1C1中,AA1⊥底面ABC,AB⊥AC,AC=AA1,E,F分别是棱BC,CC1的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/14bd09e3-0dfc-4189-8b1a-5135faf81ae2.png?resizew=152)
(1)若线段AC上存在点D满足平面DEF//平面ABC1,试确定点D的位置,并说明理由;
(2)证明:EF⊥A1C.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/14bd09e3-0dfc-4189-8b1a-5135faf81ae2.png?resizew=152)
(1)若线段AC上存在点D满足平面DEF//平面ABC1,试确定点D的位置,并说明理由;
(2)证明:EF⊥A1C.
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7 . 如图,在棱长为1的正方体
中,点P为线段
上的动点(包含端点),则下列说法正确的是( ).
![](https://img.xkw.com/dksih/QBM/2021/10/21/2834324322140160/2834895242518528/STEM/c406b3b6589a41c785b03bc1e8754499.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://img.xkw.com/dksih/QBM/2021/10/21/2834324322140160/2834895242518528/STEM/c406b3b6589a41c785b03bc1e8754499.png?resizew=184)
A.存在点P使得![]() ![]() |
B.不存在点P使得![]() |
C.不存在点P使得![]() ![]() |
D.存在点P使得平面BCP与平面DCP所成角为![]() |
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8 . 中国古代数学名著《九章算术•商功》中,阐述:“斜解立方,得两堵.斜解壍堵,一为鳖臑.阳马居二,鳖臑居一”,
平面ABC,
,PA=AB=BC=4,则PB与AC所成的角等于______ ;PC与AB之间的距离等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://img.xkw.com/dksih/QBM/2021/10/21/2834324322140160/2834895242723328/STEM/03c7391e49664728926e4b1399819c8e.png?resizew=128)
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9 . 如图,在正方体ABCD﹣A1B1C1D1中,点P在线段B1C上运动,则正确结论是________ .
![](https://img.xkw.com/dksih/QBM/2021/10/13/2828628154507264/2834745262407680/STEM/d8c37d59-d3cf-47de-81a3-39b9880037d5.png?resizew=256)
①直线BD1⊥平面A1C1D
②直线AP∥平面A1C1D
③三棱锥P﹣A1C1D的体积为定值
④异面直线AP与A1D所成角的取值范围是[
,
]
![](https://img.xkw.com/dksih/QBM/2021/10/13/2828628154507264/2834745262407680/STEM/d8c37d59-d3cf-47de-81a3-39b9880037d5.png?resizew=256)
①直线BD1⊥平面A1C1D
②直线AP∥平面A1C1D
③三棱锥P﹣A1C1D的体积为定值
④异面直线AP与A1D所成角的取值范围是[
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
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10 . 四棱锥
的底面是矩形,
,
,
,
,则异面直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bd628837add19267c186fbff246076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6281306726065e7075c579b9b66537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e12bfde565540f059dd27ea47dfaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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