20-21高一下·江苏南通·期中
名校
解题方法
1 . 如图,在四棱锥
中,
平面
,在直角梯形
中,
,
,
,
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/43047f6e-07f7-401f-a659-791035571b5e.png?resizew=127)
(1)求证:平面
平面
;
(2)在线段
上找一点
,使得
平面
,则满足题意的
点是否存在?若存在,求出点
的位置;若不存在,请说明理由.
(3)若
是
中点,
,
,
,
,求三棱锥
的体积.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ee81b6066188abee9d167b6c7f3f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/43047f6e-07f7-401f-a659-791035571b5e.png?resizew=127)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac48b9ac8efbf41d6ab5242d247bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b95d703163eac1f07410045600066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be6ed6e769204f5047f9d52dd2fd1ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f2424a84016755afad47abdda10368.png)
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名校
解题方法
2 . 《九章算术》中将底面为直角三角形且侧棱垂直于底面的三棱柱称为“堑堵”;底面为矩形,一条侧棱垂直于底面的四棱锥称之为“阳马”;四个面均为直角三角形的四面体称为“鳖臑”.如图在堑堵
中,
,且
.下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/8e262caf-5efd-40ff-b910-4107a18eb80e.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1423d6a1698a9b6c8803b9bdadd2f54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/8e262caf-5efd-40ff-b910-4107a18eb80e.png?resizew=144)
A.四棱锥![]() |
B.四面体![]() |
C.四棱锥![]() ![]() |
D.过![]() ![]() ![]() ![]() ![]() ![]() |
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3 . 下列关于空间几何体的叙述,正确的是( )
A.直角三角形绕它的一条边旋转得到的几何体是一个圆锥 |
B.棱柱的侧面都是平行四边形 |
C.用一个平面去截棱锥,底面和截面之间的部分组成的几何体叫棱台 |
D.直平行六面体是长方体 |
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2021-08-15更新
|
285次组卷
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3卷引用:福建省仙游县枫亭中学2022-2023学年高一下学期期中考试数学试题
福建省仙游县枫亭中学2022-2023学年高一下学期期中考试数学试题福建省福州市八县(市)协作校2020-2021学年高一下学期期中考试数学试题(已下线)考点28 空间几何体的结构及其三视图和直观图-备战2022年高考数学一轮复习考点帮(浙江专用)
解题方法
4 . 已知正三角形
的边长为4,那么
的直观图
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-08-15更新
|
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3卷引用:福建省仙游县枫亭中学2022-2023学年高一下学期期中考试数学试题
名校
解题方法
5 . 如图,正方体
的棱长为
,
,
,
分别为
,
,
的中点,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/aece1c12-c522-4427-a1af-f29b145a4bf9.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/aece1c12-c522-4427-a1af-f29b145a4bf9.png?resizew=172)
A.直线![]() ![]() | B.直线![]() ![]() |
C.平面![]() ![]() | D.点![]() ![]() ![]() |
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3卷引用:福建省莆田第一中学2020-2021学年高一下学期期中考试数学试题
6 . 古希腊数学家阿基米德一生最为满意的一个数学发现就是“圆柱容球”定理,即圆柱内切球的体积是圆柱体积的
,且球的表面积也是圆柱表面积的
.已知表面积为
的圆柱的轴截面为正方形,则该圆柱内切球表面积与圆柱的体积之比为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99efe814a02203a4b280292f2390f3c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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3卷引用:福建省莆田市2020-2021学年高一下学期期末数学试题
7 . 如图1,
中,
,
,
,D,E分别是
,
的中点.把
沿
折至
的位置,
平面
,连接
,
,F为线段
的中点,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/72146627-7751-4568-b0ee-c7439c0bc1d4.png?resizew=296)
(1)求证:
平面
;
(2)当三棱锥
的体积为
时,求直线
与
所成角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c956ac0eb05cf120e14f17413dfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c72495428bbbd12cad3271b0654ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c42bce098904b241986bb91c65ab33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/72146627-7751-4568-b0ee-c7439c0bc1d4.png?resizew=296)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)当三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1112ffa328ed486ffc5e4a605eb510e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
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名校
8 . 如图,在棱长为1的正方体
中,P是
上的动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
A.直线![]() ![]() |
B.![]() ![]() |
C.![]() |
D.当P与![]() ![]() ![]() |
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|
1703次组卷
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8卷引用:福建省莆田市2020-2021学年高一下学期期末数学试题
福建省莆田市2020-2021学年高一下学期期末数学试题广东省广州市三校联考2021-2022学年高一下学期期中数学试题广东省广州市三校2022-2023学年高一下学期期中联考数学试题(已下线)第10讲空间直线、平面的平行(核心考点讲与练)-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)(原卷版)(已下线)【江苏专用】高一下学期期末模拟测试B卷安徽省安庆市桐城中学2023届高三下学期第一次模拟数学试卷福建省南安市蓝园高级中学2022-2023学年高二下学期期末考试数学试题【人教A版(2019)】专题02立体几何与空间向量(第二部分)-高二下学期名校期末好题汇编
9 . 在三棱柱
中,点
为
的中点,点
是
上的一点.
![](https://img.xkw.com/dksih/QBM/2021/5/7/2716030318870528/2771311963496448/STEM/69c724e4abc54f27ad989fa11f783441.png?resizew=212)
(1)当
等于何值时,平面
平面
?并证明;
(2)当平面
平面
时,记几何体
,
的体积分别为
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/2021/5/7/2716030318870528/2771311963496448/STEM/69c724e4abc54f27ad989fa11f783441.png?resizew=212)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f493dcc7ebb6af40b72266f9f43dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404eaf9b9874248c7adce4322515c578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
(2)当平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404eaf9b9874248c7adce4322515c578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14dccba23ff6271c05e59f50c6f8f43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e03fdae8b0f65acd4602f196f6d6b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30468054fb148d2f937a54fcc1d60f92.png)
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名校
10 . 如图,圆锥的母线长为4,点
为母线
的中点,从点
处拉一条绳子,绕圆锥的侧面转一周达到
点,这条绳子的长度最短值为
,则此圆锥的底面半径为___________ ,此圆锥表面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/ae179738-c668-4c52-83ad-70197f27f2ae.png?resizew=157)
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