名校
解题方法
1 . 如图,某钢性“钉”由四条线段组成,其结构能使它任意抛至水平面后,总有一端所在的直线竖直向上,并记组成该“钉”的四条等长的线段公共点为O,钉尖为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/4e67a086-fda1-4f7f-85cc-2d17d2b6d685.png?resizew=157)
(1)当
在同一水平面内时,求
与平面
所成角的大小(结果用反三角函数值表示);
(2)若该“钉”的三个端尖所确定的三角形的面积为
,要用某种线性材料复制100枚这种“钉”(损耗忽略不计),共需要该种材料多少厘米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cebb466d8642424bd583e8843ffe39.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/30/4e67a086-fda1-4f7f-85cc-2d17d2b6d685.png?resizew=157)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fa157b4f65f3a9aa1f7f82de02e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa6e3afb5196decc6f087cbfe40cf8a.png)
(2)若该“钉”的三个端尖所确定的三角形的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612e7bffc681730ce39108b7cd8b8db3.png)
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2卷引用:上海市上海中学2021-2022学年高一下学期期末阶段练习数学试题
2 . 如图,在正三棱柱
中,D为AB的中点,
,
.
平面
;
(2)求点A到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3c1b59a81027f370cb0f205892e76e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
(2)求点A到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74bca84ad86c648d3bb20c8909c8da3f.png)
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5卷引用:黑龙江省鹤岗市第一中学2021-2022学年高一下学期期末考试数学试题
名校
3 . 如图,在三棱锥P﹣ABC中,PA⊥底面ABC,∠ABC=90°,PA=2,AC=2
.
![](https://img.xkw.com/dksih/QBM/2022/6/21/3006357081874432/3010645026562048/STEM/974bd8eac9504e40a08ab30e4be59410.png?resizew=153)
(1)求证:平面
平面
;
(2)若二面角P﹣BC﹣A的大小为45°,过点A作AN⊥PC于N,求直线AN与平面PBC所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2022/6/21/3006357081874432/3010645026562048/STEM/974bd8eac9504e40a08ab30e4be59410.png?resizew=153)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)若二面角P﹣BC﹣A的大小为45°,过点A作AN⊥PC于N,求直线AN与平面PBC所成角的大小.
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12卷引用:重庆市实验中学校2021-2022学年高一下学期期末复习(二)数学试题
重庆市实验中学校2021-2022学年高一下学期期末复习(二)数学试题(已下线)第12练 空间直线、平面的垂直-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)福建省厦门第二中学2022-2023学年高一下学期5月阶段性考试数学试题湖南省湘潭市2021-2022学年高三上学期一模数学试题(已下线)考向36 立体几何中的向量方法江苏省南京市金陵中学2021-2022学年高三上学期期中数学试题(已下线)选择性必修第一册 综合测试(提升)-2021-2022学年高二数学一隅三反系列(人教A版2019选择性必修第一册)湖北省黄冈市2021-2022学年高三上学期11月联考数学试题宁夏青铜峡市高级中学2021-2022学年高二下学期开学考试数学(理)试题江苏省南京大学附属中学2022届高三下学期四月质量检测数学试题(已下线)查补易混易错点05 空间向量与立体几何-【查漏补缺】2022年高考数学三轮冲刺过关(新高考专用)福建省泉州市第六中学2021-2022学年高二上学期期中模块测试数学试题
4 . 如图,在多面体
中,
,
,平面
平面
是棱
上一点.
;
(2)若
,求证:
平面
;
(3)若
平面
,求直线
与平面
所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca8a7f4c3858195912ba8cec1e62580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22ffdaebe22aab238a04fd99f295469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f643db1101c352132c1d670e9cb30e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dd470cd9dfcde7f7e1762af28bc649c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462d9d51496fa5250f55e7368111e056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bace544bf63433a968f15b525a5a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a829577bb0863d3f39db38ca4c179a56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
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3卷引用:浙江省宁波市慈溪市2021-2022学年高一下学期期末数学试题
名校
5 . 如图,在四棱锥
中,底面
为矩形,侧面
是等腰三角形且
为
的中点,
在
上且
底面
.
侧面
;
(2)当底面
为正方形且侧面
为等边三角形时,求二面角
的平面角
的正切值.
![](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/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef25f6a76dd6b1529a1ab57d5ab0b66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0edb1508fc95765f3bb316bcb5252d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)当底面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/053af8641980763a7f0e77beefe0712d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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6卷引用:浙江省宁波市慈溪市2021-2022学年高一下学期期末数学试题
解题方法
6 . 如图①,在梯形
中,
,
,
,
,
,如图②,将
沿边
翻折至
,使得平面
平面
,过点B作一平面与
垂直,分别交
,
于点E,F.
平面
;
(2)求点E到平面
的距离.
![](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/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b6d19fedaf8488f9637cd64efbca83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc7f54acef4e40aad465ffe5f8b4b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ea25ef38e4afa8f75ffd0842890289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe052786101dfcc941480919eb2cecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21897349d3d7c94419692106887153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1530d93834fbafba5f7217778ea90442.png)
(2)求点E到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ec6cf562ec0322dd2df37fbf56ef3f.png)
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3卷引用:江苏省常州市金坛区2021-2022学年高一下学期期末数学试题
名校
7 . 如图,在四棱锥
中,
平面
,
,
,
,点E为棱
上的一点,且
.
平面
;
(2)求直线
与平面
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c30be0ab7741ef6cb2838ffc7ce896fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ba97b210ac29bb722880e56bf68201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224be2b61359bd809b1cc43c76b75dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
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|
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|
4卷引用:江苏省常州市金坛区2021-2022学年高一下学期期末数学试题
8 . 如图,四棱锥
中,底面ABCD为平行四边形,
,平面
平面ABCD,平面
平面
.
![](https://img.xkw.com/dksih/QBM/2022/6/26/3009806590025728/3010372680359936/STEM/babd6c4da3bd4dbe88fffdb2ad9d069b.png?resizew=222)
(1)求四棱锥
的体积;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9418a802bf532cb88f8571b9c81fb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1084a42a7b7600ac9651a023de6d3401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebae74545340ce6971f437d129e9c659.png)
![](https://img.xkw.com/dksih/QBM/2022/6/26/3009806590025728/3010372680359936/STEM/babd6c4da3bd4dbe88fffdb2ad9d069b.png?resizew=222)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4afc5ee7b66a33ed0ddf27c52e49c6bb.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,三棱柱
中,E为
中点,F为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/27/8309f077-6f42-4428-906e-d7ccb5fb5854.png?resizew=142)
(1)求证:
平面ABC;
(2)若
平面
,求证:
平面ABC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/27/8309f077-6f42-4428-906e-d7ccb5fb5854.png?resizew=142)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a407b262c22419f73396170ecdc849.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf6fde6ec44bba7726b6f2d07b3b179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25e8fc3dda4f8b45491514b6e22a962.png)
您最近一年使用:0次
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|
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|
2卷引用:江苏省扬州市2021-2022学年高一下学期期末数学试题
解题方法
10 . 如图, 四棱锥
的底面四边形
为正方形, 顶点
在底面的射影为线段
的中点
是
的中点, ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899cd04d0ea417f9e1e0ff317dfe171e.png)
(1)求证:
平面
;
(2)求过点
的平面截该棱锥得到两部分的体积之比.
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70e70bd32076945ff38766105181431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899cd04d0ea417f9e1e0ff317dfe171e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/50e59e22-02a7-4a39-b364-5e155c8ca50a.png?resizew=264)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af142a6050b54e8b5777a085d4597481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5979c684468fc369ad9b431b69bdd9c2.png)
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