1 . 如图,正方形
所在平面与
所在平面互相垂直,
,设平面
与平面
相交于直线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/12e3d3c7-c57e-4cb0-a439-78a2e817864a.png?resizew=139)
(1)求
与
所成角的大小;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9681f9d187e18d23f604499a23727daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b405a122ded2eb0395d5434892ae7b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/12e3d3c7-c57e-4cb0-a439-78a2e817864a.png?resizew=139)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc6db50a9709c3f4d84eee7bdf1250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
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名校
解题方法
2 . 直三棱柱
的棱长都是2,则
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/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-05-16更新
|
695次组卷
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4卷引用:四川省成都市第四十九中学校2021-2022学年高三上学期12月月考理科数学试题
解题方法
3 . 三棱柱
中,侧面与底面垂直,底面是边长为2的正三角形,
的中点为D,若直线
与
所成的角为
,则棱柱的高为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ecad355286188fd317939fa50f9555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
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名校
4 . 已知四边形
.现将
沿BD边折起,使得平面
平面BCD,
.点P为线段的中点.请你用几何法解决下列问题:
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715481583820800/2715803138007040/STEM/4a5ea5fa65604b5b94ebbfab75a8774e.png?resizew=228)
(1)求证:
平面ACD;
(2)若M为CD的中点,求MP与平面BPC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a1c3ee740c835b72e5498792d2cdef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf6dc837ae85207789b94d109c5c2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://img.xkw.com/dksih/QBM/2021/5/6/2715481583820800/2715803138007040/STEM/4a5ea5fa65604b5b94ebbfab75a8774e.png?resizew=228)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b4e753ef119608188c46a50ec597e6.png)
(2)若M为CD的中点,求MP与平面BPC所成角的正弦值.
您最近一年使用:0次
2021-05-07更新
|
1243次组卷
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6卷引用:云南、贵州、四川、广西四省名校2021届高三第三次大联考数学(理)试题
2021高三·全国·专题练习
5 . 已知长方体
中,
与平面
所成角的正弦值为
,则该长方体的外接球的表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/3a1a42d0-2802-4219-83d1-f20c10088542.png?resizew=131)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8bb23a82b6243bedf726ba6bab2294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f4d9c3f1e496cc3fa3401ffaedd7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fd7940df8100511c9b98ed85d014a3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/3a1a42d0-2802-4219-83d1-f20c10088542.png?resizew=131)
A. ![]() | B. ![]() | C. ![]() | D. ![]() |
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5卷引用:四川省成都市双流区成都棠湖外国语学校2020-2021学年高二下学期期中数学理科试题
四川省成都市双流区成都棠湖外国语学校2020-2021学年高二下学期期中数学理科试题(已下线)专题06 空间中的平行与垂直-备战2021届高考数学(理)二轮复习题型专练?(通用版)(已下线)专题20 立体几何角的计算问题(测)-2021年高三数学二轮复习讲练测(新高考版)(已下线) 专题24 立体几何角的计算问题(测)-2021年高三数学二轮复习讲练测(文理通用)(已下线)8. 6. 3 平面与平面垂直(第1课时) -【上好课】(人教A版2019必修第二册)
6 . 如图,已知棱长为2的正方体
中,点
在线段
上运动,给出下列结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/19ce3c68-6b25-49ae-89cb-79cf491332d8.png?resizew=148)
①异面直线
与
所成的角范围为
;
②平面
平面
;
③点
到平面
的距离为定值
;
④存在一点
,使得直线
与平面
所成的角为
.
其中正确的结论是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/19ce3c68-6b25-49ae-89cb-79cf491332d8.png?resizew=148)
①异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27acbe982b5a0ce9e40b332089afc51.png)
②平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f192a05fd69940f625cb31e336f78710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
③点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
④存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
其中正确的结论是
您最近一年使用:0次
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18卷引用:四川省攀枝花市第七高级中学校2020-2021学年高二下学期模拟考试数学(理)试题
四川省攀枝花市第七高级中学校2020-2021学年高二下学期模拟考试数学(理)试题山西省吕梁市2021届高三上学期第一次模拟数学(理)试题(已下线)专题09 立体几何(练)-2021年高考数学二轮复习讲练测(新高考版)(已下线)专题09 立体几何(练)-2021年高考数学二轮复习讲练测(文科)(文理通用)(已下线)专题09 立体几何(练)-2021年高考数学二轮复习讲练测(文理通用)(理科)(已下线)专题10 空间向量与立体几何-备战2021年高考数学(理)经典小题考前必刷集合(已下线)专题20 立体几何角的计算问题(测)-2021年高三数学二轮复习讲练测(新高考版)(已下线) 专题24 立体几何角的计算问题(测)-2021年高三数学二轮复习讲练测(文理通用)(已下线)专题4.5 立体几何中探索性问题-玩转压轴题,进军满分之2021高考数学选择题填空题(已下线)解密14 空间中的平行与垂直(分层训练)-【高频考点解密】2021年高考数学(理)二轮复习讲义+分层训练(已下线)押第16题 立体几何综合-备战2021年高考数学(文)临考题号押题(全国卷2)湖北省武汉市第四十九中2020-2021学年高一下学期5月月考数学试题四川省遂宁中学校2022-2023学年高二上学期10月月考数学(文)试题(已下线)“8+4+4”小题强化训练(36)直线、平面垂直的判定与性质-2022届高考数学一轮复习(江苏等新高考地区专用)沪教版(2020) 必修第三册 精准辅导 第10章 单元测试(已下线)第25节 直线、平面垂直的判定与性质-备战2023年高考数学一轮复习考点帮(全国通用)上海市曹杨中学2022-2023学年高二上学期期中数学试题(已下线)第七章 重难专攻(七)?立体几何中的综合问题(B素养提升卷)
7 . 如图,四边形
为菱形,O为
与
的交点,
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/c330dabe-0d2b-4c9b-ab62-03ea6f77505f.png?resizew=142)
(1)求证:平面
平面
;
(2)若
,求
与平面
所成角的正弦值;
(3)若
,三棱锥
的体积为
,求三棱锥
的侧面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](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/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/c330dabe-0d2b-4c9b-ab62-03ea6f77505f.png?resizew=142)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a46fbde58e12b1edc038ae9e921722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926584088b939200d88e64318f2d4e6c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa99c9e32c26c441503d4e7794178c1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb8837a125041127658ef850e6656ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f73a0ca4e6c794242489066fddb6c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b565e518d475a50358fedff2f0bb8dec.png)
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解题方法
8 . 在直四棱柱
中底面四边形
为菱形,
,
,
,E为
中点,过点E且和平面
垂直的平面为
,
平面
,则直线
和平面
所成角的正弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13c772461aef1d9d715129636739748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc78a86b12ba0b4553135a3a635fc418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5aea91cc843178acecd7affbd21efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e516121599c9fcc528121c00afcf52fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图,在四棱锥
中,侧面
是边长为6的正三角形,侧面
与矩形
所在平面垂直,
分别为侧棱
的中点,
为棱
上一点,且
,
.若平面
与
交于点
,则
与底面
所成角的正切值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/958f9d07-f2e6-4ce6-9ba5-60e38bea12a5.png?resizew=184)
![](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/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930e85bc9f73e86cfb6ce9b076433f1b.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/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868a98a5d6337c3dd9bca228e3545665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/958f9d07-f2e6-4ce6-9ba5-60e38bea12a5.png?resizew=184)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-23更新
|
511次组卷
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3卷引用:四川省遂宁市射洪中学2021-2022学年高二上学期第一次月考数学理试题
10 . 如图所示,已知AB为圆O的直径,且AB=4,点D为线段AB上一点,且
,点C为圆O上一点,且
.点P在圆O所在平面上的正投影为点D,PD=DB.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/f9f0d364-1b96-45fc-b52b-03efba75f05f.png?resizew=150)
(1)求证:CD⊥平面PAB;
(2)求直线PC与平面PAB所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b544ef48ca69eaeabcdbca45249881fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e20c1b7f55cd8e68a7c3aa58bc944c5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/f9f0d364-1b96-45fc-b52b-03efba75f05f.png?resizew=150)
(1)求证:CD⊥平面PAB;
(2)求直线PC与平面PAB所成的角.
您最近一年使用:0次
2019-10-12更新
|
435次组卷
|
4卷引用:四川省成都市实验外国语学校2020-2021学年高三下学期开学考试理科数学试题
四川省成都市实验外国语学校2020-2021学年高三下学期开学考试理科数学试题四川省广安市武胜烈面中学2019-2020学年高二上学期10月月考数学(文)试题(已下线)【新东方】杭州新东方高中数学试卷325(已下线)第十三章 立体几何初步(知识归纳+题型突破)(2)-单元速记·巧练(苏教版2019必修第二册)