1 . 如图,在四棱锥
中,
,
,底面
为矩形.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/1863391b-6c40-4eaf-87f6-30bc186af820.png?resizew=210)
(1)证明:平面
平面
;
(2)若
,
,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/8a15a004f7d47ed595f063e60075223a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b07e317ffe7859e81b42ef4970e344a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/1863391b-6c40-4eaf-87f6-30bc186af820.png?resizew=210)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
您最近一年使用:0次
2022-12-17更新
|
518次组卷
|
3卷引用:吉林省四平市第一高级中学2021-2022学年高三上学期第三次月考数学(文)试题
吉林省四平市第一高级中学2021-2022学年高三上学期第三次月考数学(文)试题广西师范大学附属中学2022-2023学年高二上学期11月期中考试数学试题(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
名校
解题方法
2 . 在平行四边形ABCD中,AB=6,BC=4,∠BAD=60°,过点A作CD的垂线交CD的延长线于点E,连接EB交AD于点F,如图1.将
沿AD折起,使得点E到达点P的位置,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/9148efad-45cb-40b7-8980-2f6bb76357ac.png?resizew=383)
(1)证明:直线
平面BFP;
(2)若∠BFP=120°,求点F到平面BCP的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/9148efad-45cb-40b7-8980-2f6bb76357ac.png?resizew=383)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
(2)若∠BFP=120°,求点F到平面BCP的距离.
您最近一年使用:0次
名校
3 . 如图,四棱锥
中,底面
是直角梯形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/7d9815b8-2abe-4120-a341-0c5b2f20d39b.png?resizew=181)
(1)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/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6037bba27008abc96a6dba99753549ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61d85d09793e9610fbaffcd712b3a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37002ada5d194d4d062fa3285d7d9824.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/7d9815b8-2abe-4120-a341-0c5b2f20d39b.png?resizew=181)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb5255e2159617505e0c87d01437a57.png)
您最近一年使用:0次
2022-12-03更新
|
1403次组卷
|
7卷引用:吉林省长春市第六中学2023-2024学年高二上学期第二学程(11月期中)考试数学试题
解题方法
4 . 如图,三棱柱
中,
平面ABC,AB=3,AC=4,BC=5.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/adec8e1a-65cb-4a6e-a6f7-a4d44378610c.png?resizew=143)
(1)求证:
平面
;
(2)若异面直线
与
所成的角为30°,求三棱柱
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/adec8e1a-65cb-4a6e-a6f7-a4d44378610c.png?resizew=143)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)若异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在四棱锥P-ABCD中,底面ABCD为平行四边形,
为等边三角形,平面
平面PCD,
,CD=2,AD=3,棱PC的中点为N,连接DN.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/9d472d62-2735-437d-9b63-3efe68651d26.png?resizew=198)
(1)求证:
平面PCD;
(2)求直线AD与平面PAC所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44f4120c94cb7176dc31fcac387b32e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/9d472d62-2735-437d-9b63-3efe68651d26.png?resizew=198)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
(2)求直线AD与平面PAC所成角的正弦值.
您最近一年使用:0次
名校
6 . 如图,四棱锥
中,底面
是矩形,
,
.
为
上的点,且
平面
;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/b058fcce-a7e2-4bb8-8e4f-1c937e0838af.png?resizew=161)
(1)求证:
平面
;
(2)求二面角
的正弦值.
![](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/ffddeafce03aae663bc823e2d5127c61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93451ea7ec8499b913753dbc32191d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ca5b5fd1031438de2d2dd59be8c348.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/11/b058fcce-a7e2-4bb8-8e4f-1c937e0838af.png?resizew=161)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b312de408dda638ca3e9c687549d46.png)
您最近一年使用:0次
2022-11-26更新
|
518次组卷
|
3卷引用:吉林省辽源市第五中学校2022-2023学年高三上学期期中数学试题
7 . 故宫太和殿是中国形制最高的宫殿,其建筑采用了重檐庑殿顶的屋顶样式,庑殿顶是“四出水”的五脊四坡式,由一条正脊和四条垂脊组成,因此又称五脊殿.由于屋顶有四面斜坡,故又称四阿顶.如图,某几何体ABCDEF有五个面,其形状与四阿顶相类似.已知底面ABCD为矩形,AB=2AD=2EF=8,EF∥底面ABCD,EA=ED=FB=FC,M,N分别为AD,BC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/542d5cab-2159-4797-a534-9571d3f52961.png?resizew=204)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/783995be-5ad8-4737-a047-ad4b15f7fc41.png?resizew=211)
(1)证明:EF∥AB且BC⊥平面EFNM.
(2)若二面角
为
,求CF与平面ABF所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/542d5cab-2159-4797-a534-9571d3f52961.png?resizew=204)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/783995be-5ad8-4737-a047-ad4b15f7fc41.png?resizew=211)
(1)证明:EF∥AB且BC⊥平面EFNM.
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/213d25b5ade550ec6afd3536e9eb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
您最近一年使用:0次
2022-11-26更新
|
1777次组卷
|
8卷引用:吉林省部分学校2022-2023学年高三上学期11月联考数学试题
吉林省部分学校2022-2023学年高三上学期11月联考数学试题广西贵港市百校2023届高三上学期11月联考数学(理)试题山西省部分学校2023届高三上学期11月联考数学试题湖南省部分学校2022-2023学年高三上学期12月联考数学试题(已下线)专题4 “素材创新”类型(已下线)专题8-2 立体几何中的角和距离问题(含探索性问题)-1河南省创新发展联盟2023届高三上学期11月阶段检测数学(理)试题(已下线)第六章 突破立体几何创新问题 专题一 交汇中国古代文化 微点3 与中国古代文化遗产有关的立体几何问题(三)【基础版】
名校
8 . 已知两条直线m,n,两个平面α,β.下列说法正确的是( )
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2022-11-22更新
|
393次组卷
|
6卷引用:吉林省辽源市第五中学校2022-2023学年高三上学期期中数学试题
9 . 如图,在四棱锥
中,
平面
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/9c8fe745-7a33-44eb-9ea0-0090520280f0.png?resizew=171)
(1)证明:
平面
.
(2)若
,点
在棱
上,求平面
与平面
夹角的余弦值的最小值.
![](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/728fcb9b078221a54ca841145ab93227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/9c8fe745-7a33-44eb-9ea0-0090520280f0.png?resizew=171)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee90881c743e2cff2e3128d6bdb86174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
2022-11-16更新
|
412次组卷
|
3卷引用:吉林省吉林市等2地2022-2023学年高二上学期期中联考数学试题
名校
10 . 如图,在四棱锥
中,底面
是矩形,
平面
,
,
,
是
的中点,点
在
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/a4d789d9-7164-428a-8932-b1b2a27146a5.png?resizew=141)
(1)证明:
平面
;
(2)求平面
与平面
的夹角的余弦值.
![](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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a148e1cc59be85f85f41cafabeae11f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e2a44d05b1d387150c4b359e021ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875cd2860fb57cedf932aa0535d2e1da.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/a4d789d9-7164-428a-8932-b1b2a27146a5.png?resizew=141)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c982eb645d77aa24c642fca6d72e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c745df4f226027778d5fe45b6501b822.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c745df4f226027778d5fe45b6501b822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
您最近一年使用:0次
2022-11-15更新
|
4699次组卷
|
11卷引用:吉林省吉林市2022-2023学年高二上学期期中数学试题
吉林省吉林市2022-2023学年高二上学期期中数学试题吉林省长春市长春外国语学校2022-2023学年高二下学期期中数学试题广西钦州市2022-2023学年高二上学期期末考试数学试题安徽省阜阳市阜南县2022-2023学年高二上学期期末联考数学试题四川省成都新津为明学校2022-2023学年高二下学期第一次月考数学(理科)试题云南省宣威市第三中学2022-2023学年高二下学期第二次月考数学试题黑龙江省绥化市绥棱县第一中学2022-2023学年高一下学期期末数学试题新疆维吾尔自治区喀什地区喀什第六中学2022-2023学年高二上学期11月月考数学试题广东省惠州市华罗庚中学2023-2024学年高二上学期11月月考数学试题广东省深圳市罗湖高级中学2023-2024学年高二上学期12月阶段性考试数学试题陕西省西安市周至县第四中学2023-2024学年高二上学期期末数学试题