名校
1 . 如图1,在
中,
,
,
,
、
分别是
、
上的点,且
,
,将
沿
折起到△
的位置,使
,如图2.
![](https://img.xkw.com/dksih/QBM/2021/12/11/2870077265436672/2871466226425856/STEM/9ac006992149441d8c668bf3ae408a1b.png?resizew=288)
(1)求证:
平面
;
(2)若
是
的中点,求
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a078495ba47076ccaa28b46f765d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2fef4031c10abc18c8747af6b9a8a.png)
![](https://img.xkw.com/dksih/QBM/2021/12/11/2870077265436672/2871466226425856/STEM/9ac006992149441d8c668bf3ae408a1b.png?resizew=288)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d8a9d64ad3c8cba28840b41ed7837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
您最近一年使用:0次
名校
2 . 如图,四棱锥
在底面是矩形,
平面
,
、
分别是
、
的中点,
,
.
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854656446234624/2857312600834048/STEM/b836c123-082b-4d52-a78d-8c811f583aaa.png?resizew=261)
(1)求证:
平面
;
(2)若直线
与平面
所成的角为
,求直线
与平面
所成的角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854656446234624/2857312600834048/STEM/b836c123-082b-4d52-a78d-8c811f583aaa.png?resizew=261)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
3 . 如图,直三棱柱
中,
,
,
,E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/beedfcce-f719-454a-a1ec-121402d01a52.png?resizew=197)
(1)求BE与平面
所成角的大小(用反三角函数表示);
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e44cb429eea46e7ee4320147192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/beedfcce-f719-454a-a1ec-121402d01a52.png?resizew=197)
(1)求BE与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf81f142b84adcf278b51c62c88e6afc.png)
您最近一年使用:0次
名校
解题方法
4 . 在长方体
中,
,
,E为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/2910e10e-9cb3-4e01-9bbb-5e2dc1aca7cc.png?resizew=176)
(1)求DE与平面
所成角的大小;
(2)求A,C两点在长方体
所在外接球上的球面距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/2910e10e-9cb3-4e01-9bbb-5e2dc1aca7cc.png?resizew=176)
(1)求DE与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
(2)求A,C两点在长方体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
您最近一年使用:0次
名校
5 . 如图,三棱锥
中,
,
,
,
,点P在平面ABC上的射影H恰好落在线段AC的中点上,点E为线段PA的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/93c949b4-134a-4a65-b995-8d7c924687a2.png?resizew=134)
(1)求直线PB与平面ABC所成的角;
(2)求E到平面PBC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aabecf66d94e4094f9cc46fd8ee050f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9f4549f0d7aafb21589b90fb9b2a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602ee324ca5bc3cf9ef251a061b431ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/93c949b4-134a-4a65-b995-8d7c924687a2.png?resizew=134)
(1)求直线PB与平面ABC所成的角;
(2)求E到平面PBC的距离.
您最近一年使用:0次
解题方法
6 . 在四棱锥P–ABCD中,底面ABCD是边长为6的正方形,PD平面ABCD,PD=8.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/5251c280-5f32-44cf-965d-cf88f43a890a.png?resizew=185)
(1)求异面直线PB与DC所成角的大小;
(2)求PA与平面PBD所成角的大小.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/5251c280-5f32-44cf-965d-cf88f43a890a.png?resizew=185)
(1)求异面直线PB与DC所成角的大小;
(2)求PA与平面PBD所成角的大小.
您最近一年使用:0次
名校
解题方法
7 . 如图,在四棱锥
中,底面
为正方形,
底面
,
,E为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/11ebdb62-a2e3-4a92-8747-fe1a5f84c6fb.png?resizew=168)
(1)若F为线段
的中点,求直线
和平面
所成角的大小.
(2)若点F在线段
上移动,当三棱锥
体积最大时,求异面直线
与
所成角的大小.
![](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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/11ebdb62-a2e3-4a92-8747-fe1a5f84c6fb.png?resizew=168)
(1)若F为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若点F在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc3bf74119692ac98eb24fcfa2a3f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
您最近一年使用:0次
2021-10-18更新
|
308次组卷
|
3卷引用:上海市格致中学2022届高三上学期12月月考数学试题
上海市格致中学2022届高三上学期12月月考数学试题上海市行知中学2021-2022学年高二上学期10月月考数学试题(已下线)11.2锥体(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020必修第三册)
8 . 如图,在长方体
中,
,点
为棱
上的动点.
![](https://img.xkw.com/dksih/QBM/2021/9/28/2818040176115712/2824772461953024/STEM/585c1b965eb24e708e043e7a35c7fa1a.png?resizew=175)
(1)求三棱锥
与长方体
的体积比;
(2)若
为棱
的中点,求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf51cd763a64e808abe0f301548f3e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://img.xkw.com/dksih/QBM/2021/9/28/2818040176115712/2824772461953024/STEM/585c1b965eb24e708e043e7a35c7fa1a.png?resizew=175)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5841ecf3472c08cda2bc85ab7a601ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a7bcc1efb8a2ff57d64b6d057da463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9857d5b03bcff4181502765995885383.png)
您最近一年使用:0次
2021-10-08更新
|
217次组卷
|
3卷引用:上海市控江中学2022届高三上学期开学考数学试题
真题
9 . 已知点
,
分别是正方形
的边
,
的中点.现将四边形
沿
折起,使二面角
为直二面角,如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/41c45b60-a627-425c-b9bf-8a2262895c49.png?resizew=184)
(1)若点
,
分别是
,
的中点,求证:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41c2d7ae6aaf6d91129ed5221a415a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69856a547e733af483753a1dc51f47bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/41c45b60-a627-425c-b9bf-8a2262895c49.png?resizew=184)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b8c2721ada247b03f41f328539b301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41c2d7ae6aaf6d91129ed5221a415a7.png)
(2)求直线
![](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
2021-09-15更新
|
5930次组卷
|
7卷引用:考向23 点、直线、平面之间的位置关系-备战2022年高考数学一轮复习考点微专题(上海专用)
(已下线)考向23 点、直线、平面之间的位置关系-备战2022年高考数学一轮复习考点微专题(上海专用)2020年山东省春季高考数学真题(已下线)专题20 立体几何综合大题必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)(已下线)考向30 线线角、线面角、二面角与距离问题(四大经典题型)(已下线)专题8-4 非建系型:探索性平行与垂直证明及求角度(已下线)第11讲 直线与平面、平面与平面的位置关系-【寒假自学课】2022年高一数学寒假精品课(苏教版2019必修第二册)广东省惠州市龙门县高级中学2021-2022学年高二下学期期中数学试题
名校
10 . 如图所示,正方体
的棱长为
,点
在棱
上,且
,连结
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2021/9/5/2801163616690176/2802149182545920/STEM/c75d3dbd-ddaf-4eb3-96dc-6e99ba5b5b86.png?resizew=257)
(1)求直线
与平面
所成角的正切值;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b25f3ea33cc08b1e2a0d9c3a9dccaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fcc730e79e3272940af1fabaf6bcde9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ee685a6d4799b0ba7e114a3906c0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bc9983f123701604ea131508334e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199336204fbca97766bf24b1dc5fdc53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cfad1ba71a78d8f415335cde2f8c52.png)
![](https://img.xkw.com/dksih/QBM/2021/9/5/2801163616690176/2802149182545920/STEM/c75d3dbd-ddaf-4eb3-96dc-6e99ba5b5b86.png?resizew=257)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56da61b9ab0b6d65ee3b9bb1da80d1c5.png)
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2021-09-06更新
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123次组卷
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3卷引用:上海市实验学校2022届高三上学期摸底考试数学试题