1 . 如图,在直三棱柱
中,
,
,
.求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fd676c41d2d644928f014b0fea4689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/c932ab68-a976-4543-80fb-d7a6e97b4849.png?resizew=179)
您最近一年使用:0次
2 . 如图,在长方体
中,
,
,
交
于
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/19/8d14ea51-b1e5-42ac-96dd-6c1a5ceeb95b.png?resizew=133)
(1)求证:
平面
;
(2)设
与平面
的交点为
,求证:
为
的垂心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57c6b0a6cb307c4c02f503831862f7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55a2310cbba5e050488cd9296eb195d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f217fedbc05776b8f975f3f8e2e38b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/19/8d14ea51-b1e5-42ac-96dd-6c1a5ceeb95b.png?resizew=133)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4645450a006f2c20087486d0833afbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb304d905125170bebfada27e7ed8960.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb304d905125170bebfada27e7ed8960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c40c49d6e2fc6fbdc21ff61841b586a6.png)
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解题方法
3 . 如图,已知
在平面
上,
为平面外一点,满足
(
为锐角),点
在平面上的射影为
.
![](https://img.xkw.com/dksih/QBM/2022/9/14/3066353834450944/3067100615614464/STEM/db4ad83c20474b34b59cd90f543d27fd.png?resizew=239)
(1)求证:点
在
的平分线
上;
(2)讨论
、
、
之间的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c7d1c05bb9a7a43a2bf863c7fdbc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/2022/9/14/3066353834450944/3067100615614464/STEM/db4ad83c20474b34b59cd90f543d27fd.png?resizew=239)
(1)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be99fa94a1f3e4964fcc13a14fab9ba5.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d398d673f06640f053333c7e3caa269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10aa98b163ade82dcadbe8dd3b73e42e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50d8a4bc257633ac538e7fd00e6d545.png)
您最近一年使用:0次
解题方法
4 . 如图,已知三棱锥
中,
,侧棱
底面
,点
在棱
和
上的射影分别是点
、
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4db9b82b67efe45a02fca32bfcf5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](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/d8b73523ef27a2e5f805ae49bd304ba4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/8743f894-7fa5-467e-b0ee-0108ec6721fd.png?resizew=179)
您最近一年使用:0次
解题方法
5 . 正方体的对角线与各个面上与其不共端点的对角线的位置关系是( )
A.异面垂直 | B.异面不垂直 | C.可能相交可能异面 | D.可能相交、平行或异面 |
您最近一年使用:0次
2022-09-15更新
|
290次组卷
|
4卷引用:沪教版(2020) 必修第三册 经典导学 课后作业 第10章 10.3 第5课时 三垂线定理
沪教版(2020) 必修第三册 经典导学 课后作业 第10章 10.3 第5课时 三垂线定理(已下线)第02讲 空间点、直线、平面之间的位置关系(练)北师大版(2019) 选修第一册 数学奇书 学业评价(二十九) 三垂线定理及其逆定理(已下线)第一章 点线面位置关系 专题二 空间垂直关系的判定与证明 微点2 空间直线垂直的判定与证明综合训练【基础版】
解题方法
6 . 如图,在斜棱柱
中,底面是边长为
的正三角形,侧棱长为
,一条侧棱
与底面内相邻两边所夹的角都是45°,求它的侧面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/b13e359f-f210-48b8-a45f-737f638d9d83.png?resizew=141)
您最近一年使用:0次
7 . 如图,已知Rt△ABC的直角边
,
,
平面
,
,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b796bbaeb8450404c2d146283562006e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/12/cdd3583e-b1aa-4698-8eef-366bfdefce99.png?resizew=147)
您最近一年使用:0次
解题方法
8 . 如图,在正方体
所有经过四个顶点的平面中,垂直于平面
的平面有________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679748eab882a6be0fefd2cc300349a4.png)
您最近一年使用:0次
2022-09-15更新
|
615次组卷
|
7卷引用:沪教版(2020) 必修第三册 经典导学 课后作业 第10章 10.4 第2课时 二面角
沪教版(2020) 必修第三册 经典导学 课后作业 第10章 10.4 第2课时 二面角(已下线)8.6.3平面与平面垂直(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)(精讲)(1)-【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)(已下线)8.6.3 平面与平面垂直(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)(已下线)第14讲 8.6.3平面与平面垂直(第1课时 )-【帮课堂】(人教A版2019必修第二册)(已下线)8.6.3平面与平面垂直——随堂检测新疆阿克苏地区柯坪县柯坪湖州国庆中学2023-2024学年高二上学期9月月考数学试题
9 . 如图,已知四棱柱
的底面是边长为1的正方形,侧棱长为2,且
,求该四棱柱的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecbca919bff5a39a99dd7f867dd61f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/2a9fd6ab-9717-42b3-ad9f-9dff0eee2fe4.png?resizew=129)
您最近一年使用:0次
解题方法
10 . 如图,在圆柱
中,
是圆柱的母线,
是圆柱的底面
的直径,
是底面圆周上异于
、
的点.求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/6c4eed64-8a5a-42db-adbe-86bab7e532a1.png?resizew=198)
您最近一年使用:0次