名校
解题方法
1 . 正四棱锥
中,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/aaa4a7f2-a69a-4a52-aa74-3b665403af13.png?resizew=175)
(1)求证:
平面
;
(2)若
,求异面直线
和
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/aaa4a7f2-a69a-4a52-aa74-3b665403af13.png?resizew=175)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828247a3338571cb0d4ba2a5bf88929c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
您最近一年使用:0次
2 . 在矩形
中,
,
,
平面
,三棱锥
的体积等于
,求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.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/ddfe0ccf24d760c77535a70c92dad145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/09c03d65-8263-40d7-b1d8-c7457d1bed27.png?resizew=144)
您最近一年使用:0次
3 . 在长方体
中,
,
,
、
分别是所在棱
、
的中点,点
是棱
上的动点,连接
、
,如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/40d883cf-e55b-419e-8da3-88e940130255.png?resizew=151)
(1)求异面直线
、
所成角的大小(用反三角函数值表示);
(2)求以
、
、
、
为顶点的三棱锥的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41d364b55d88688cd1f571ed231228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/40d883cf-e55b-419e-8da3-88e940130255.png?resizew=151)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
(2)求以
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
4 . 如图,在正三棱柱
中,已知
,正三棱柱
的体积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/3fc09c10-0e80-4279-ad9d-33dee92d3301.png?resizew=132)
(1)求正三棱柱
的表面积;
(2)求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bb52bec7f09eaf568dca3b4a4fc717.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/3fc09c10-0e80-4279-ad9d-33dee92d3301.png?resizew=132)
(1)求正三棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
您最近一年使用:0次
2020-02-09更新
|
336次组卷
|
4卷引用:2016届上海市崇明县高三第二次高考模拟(文)数学试题
5 . 如图,在正方体
中,点P,Q分别为棱AD,
的中点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152e3ff714c9dd800e4a0a0c2809e451.png)
您最近一年使用:0次
2020-02-03更新
|
1160次组卷
|
3卷引用:人教A版(2019) 必修第二册 逆袭之路 第八章 8.6 空间直线、平面的垂直 小结
6 . 已知三棱柱
的底面为直角三角形,两条直角边
和
的长分别为4和3,侧棱
的长为10.
(1)若侧棱
垂直于底面,求该三棱柱的表面积.
(2)若侧棱
与底面所成的角为
,求该三棱柱的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://img.xkw.com/dksih/QBM/2020/2/1/2389655221157888/2389690518790144/STEM/98426ca129af45eaa2fed5ad35c619e9.png?resizew=141)
(1)若侧棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
(2)若侧棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
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2020-02-01更新
|
242次组卷
|
7卷引用:2016届上海市黄浦区高三上学期期末调研测试(文)数学试题
2016届上海市黄浦区高三上学期期末调研测试(文)数学试题2016届上海市黄浦区高三上学期期末调研测试(理)数学试题2016届上海市黄浦区高考一模(理科)数学试题沪教版(2020) 必修第三册 同步跟踪练习 第11章 11.1.3 柱体的表面积上海市奉贤区致远高级中学2022-2023学年高二上学期10月月考数学试题(已下线)11.1柱体(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)上海市东华大学附属奉贤致远中学2023-2024学年高二上学期10月教学评估数学试题
7 . 如图,已知圆锥的顶点为
,母线长为4,底面圆心为
,半径为2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/bcb28dee-a8da-41a1-9d79-f2d4f9913813.png?resizew=154)
(1)求这个圆锥的体积;
(2)设
,OB是底面半径,且
,M为线段
的中点,求异面直线
与
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/bcb28dee-a8da-41a1-9d79-f2d4f9913813.png?resizew=154)
(1)求这个圆锥的体积;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
您最近一年使用:0次
8 . 如图,已知四面体
中,
,且
两两互相垂直,点
是
的中心.
![](https://img.xkw.com/dksih/QBM/2020/1/15/2377826607939584/2378358451314688/STEM/3908c28a815a4de3a8a3d850dabdfbf0.png?resizew=208)
(1)求二面角
的大小(用反三角函数表示);
(2)过
作
,垂足为
,求
绕直线
旋转一周所形成的几何体的体积;
(3)将
绕直线
旋转一周,则在旋转过程中,直线
与直线
所成角记为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a29f0b0b0b512f1683332bdfdbed03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f370a01ff1b4b401bd0da7b73a14c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb8abe76351983c69fc37d266cd1eb8.png)
![](https://img.xkw.com/dksih/QBM/2020/1/15/2377826607939584/2378358451314688/STEM/3908c28a815a4de3a8a3d850dabdfbf0.png?resizew=208)
(1)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3903d41f00036147ca6a4d4cefb88cf.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c6fae4cb202766b51857243a56011c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc17c5ed5c62e5403945f9ac6f95f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea6a4226954d17ee04258b059de0d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b63d2504bd3ecce8c10560b142356f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe211e0dea7a44863e5e1706633c3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21b9e5729d0a7a9b993a7d649094241.png)
您最近一年使用:0次
名校
9 . 如图,在三棱柱ABC-A1B1C1中,
,
,
面
,
是线段
上的动点,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/08f37b67-158a-4e6c-9141-41c33672611d.png?resizew=128)
(1)证明:
;
(2)若
且直线
与
所成的角是
,求出
的长,并求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585045d5efe79912edc19823dfa80d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/08f37b67-158a-4e6c-9141-41c33672611d.png?resizew=128)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b090058790a8cfcdda6c697d5e9c99e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4cae354e7c18c7c8b1bae7d53bd06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e516121599c9fcc528121c00afcf52fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c39d0d1cbb21e6812acfd0de2aaa87.png)
您最近一年使用:0次
2020-01-14更新
|
292次组卷
|
2卷引用:宁夏银川一中2019-2020学年高一上学期期末数学试题
10 . 如图,四棱锥S﹣ABCD中,M是SB的中点,AB∥CD,BC⊥CD,且AB=BC=2,CD=SD=1,又SD⊥面SAB.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/b9bb31b5-3462-4477-88e2-1bdd9610cc43.png?resizew=179)
(1)证明:CD⊥SD;
(2)证明:CM∥面SAD;
(3)求四棱锥S﹣ABCD的体积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/b9bb31b5-3462-4477-88e2-1bdd9610cc43.png?resizew=179)
(1)证明:CD⊥SD;
(2)证明:CM∥面SAD;
(3)求四棱锥S﹣ABCD的体积.
您最近一年使用:0次
2020-01-14更新
|
682次组卷
|
4卷引用:河南省济源市2018-2019学年高一上学期末数学试题
河南省济源市2018-2019学年高一上学期末数学试题湖南省娄底市2019-2020学年高一下学期期末数学试题河北省博野中学2019-2020学年高一下学期6月月考数学试题(已下线)高一数学下学期第二次月考-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)