名校
解题方法
1 . 在四棱锥
中,底面为梯形,
,
,
,
,四棱锥
的体积为4.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/cf2f255f-2016-4c0a-b6f3-61c7b759433e.png?resizew=223)
(1)求证:
平面
;
(2)求
与平面
所成角.(结果用反三角函数表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c01257feb4397bbef269bffe638dfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8bb7451bce637c6171cf344eb9de43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0453cfd7e92bf7746a88280b9e7b580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/cf2f255f-2016-4c0a-b6f3-61c7b759433e.png?resizew=223)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2020-09-06更新
|
439次组卷
|
5卷引用:2018年上海市建平中学高考三模数学试题
解题方法
2 . 如图,在正四棱柱
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2025fb058f62e17ba7a16e4b48cdcb8.png)
![](https://img.xkw.com/dksih/QBM/2020/8/20/2531980445908992/2541678516912128/STEM/75555458-f954-4bb2-87e7-985f965898e2.png?resizew=178)
(1)求直线
与平面
所成的角的大小;
(2)求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2025fb058f62e17ba7a16e4b48cdcb8.png)
![](https://img.xkw.com/dksih/QBM/2020/8/20/2531980445908992/2541678516912128/STEM/75555458-f954-4bb2-87e7-985f965898e2.png?resizew=178)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
您最近一年使用:0次
3 . 已知边长为1的正方形ABCD,沿BC旋转一周得到圆柱体.
(1)求圆柱体的表面积;
(2)正方形ABCD绕BC逆时针旋转
到
,求
与平面ABCD所成的角.
(1)求圆柱体的表面积;
(2)正方形ABCD绕BC逆时针旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775df7ba0dc94c15e9e706194a463f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
您最近一年使用:0次
2020-07-13更新
|
147次组卷
|
3卷引用:2020年上海市高考数学练习
解题方法
4 . 某小区楼顶成一种“楔体”形状,该“楔体”两端成对称结构,其内部为钢架结构(未画出全部钢架,如图1所示,俯视图如图2所示),底面
是矩形,
米,
米,屋脊
到底面
的距离即楔体的高为1.5米,钢架所在的平面
与
垂直且与底面的交线为
,
米,
为立柱且O是
的中点.
![](https://img.xkw.com/dksih/QBM/2020/7/6/2500242658082816/2500319997640704/STEM/06d102dcf6c24867958acd80ea80af10.png?resizew=385)
(1)求斜梁
与底面
所成角的大小(结果用反三角函数值表示);
(2)求此模体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a44328f6afdcc885f0cc21247c1e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1828e73ec5e00f95aa11ff74c703a5c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e87f9586b708869fd7186e75a75c1dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecff6005f926665a926c07ad62e0f032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://img.xkw.com/dksih/QBM/2020/7/6/2500242658082816/2500319997640704/STEM/06d102dcf6c24867958acd80ea80af10.png?resizew=385)
(1)求斜梁
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319a01218514917e446dfc807a625ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求此模体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
您最近一年使用:0次
2020-07-06更新
|
215次组卷
|
3卷引用:2020届上海市普陀区高三二模数学试题
5 . 如图,在直三棱柱
中,
,
.
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492402943655936/2493030258032640/STEM/4f199c24cc5d4bc5b6c15a9ef0ffebff.png?resizew=163)
(1)求
与平面
所成角的正切值;
(2)已知
是棱
上的一动点,问三棱锥
的体积是否为定值,如不是定值,请说明理由;如是定值,请求出此值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2f39d3fcb1664705228e683c2cc3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d355b4c58b4e883b9e65cc6da8622e.png)
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492402943655936/2493030258032640/STEM/4f199c24cc5d4bc5b6c15a9ef0ffebff.png?resizew=163)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a849e72b73caf0d376641471151986.png)
您最近一年使用:0次
6 . 如图所示,二面角
的大小为
,
,
,且
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/a687c9c1-079b-48f0-acb1-135e4f393984.png?resizew=170)
(1)求
与
所成角大小;
(2)求
与
所成角大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754bbd99327195520a4ca3ce3b9a0577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf2d033664f89ef059ac8303622a3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca773f62b64bef9e2a2befe436a5dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ee0ddf2508e7f07ffbe5635033c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c638fb895acd987140d0ca6bef097499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0a2d7d40a6c0bf1fddb802db381689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/a687c9c1-079b-48f0-acb1-135e4f393984.png?resizew=170)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
7 . 如图所示,在棱长为2的正方体
中,E是棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/f2ae6368-75d4-44ed-8dbf-7d8082935026.png?resizew=155)
(1)求直线BE与平面ABCD所成的角的大小;
(2)求点C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/f2ae6368-75d4-44ed-8dbf-7d8082935026.png?resizew=155)
(1)求直线BE与平面ABCD所成的角的大小;
(2)求点C到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
您最近一年使用:0次
8 . 在正四棱柱
中,已知底面
的边长为2,点
是
的中点,直线
与平面
成
角.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/08b4861c-dee7-4a10-b085-ea726bad47e1.png?resizew=153)
(1)求异面直线
和
所成角的大小.(结果用反三角函数值表示)
(2)求点
到平面
的距离.
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.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/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/08b4861c-dee7-4a10-b085-ea726bad47e1.png?resizew=153)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a935b7d21a103a264b6e96ecf82dbe4a.png)
您最近一年使用:0次
9 . 如图,在正四棱柱
中,底面边长为
,侧棱长为4,
、
分别为棱
、
的中点,
;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/799596c3-7254-4e49-a56b-18a0ae11520e.png?resizew=189)
(1)求直线
与平面
所成角的大小;
(2)求点
到平面
的距离
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5890bb8471fc8451aa61699887894f8e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/799596c3-7254-4e49-a56b-18a0ae11520e.png?resizew=189)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b54a2c9edd17267596e4379f27c3eb.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c878e789e07e33d65c8a18cf2c58a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次