2021高一·江苏·专题练习
名校
解题方法
1 . 如图,在梯形ABCD中,AD
BC,AB⊥BC,AB=BC=1,PA⊥平面ABCD,CD⊥PC.
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758325185167360/2758421906202624/STEM/336d6b2f10fe444d9db2ca99252edaab.png?resizew=176)
(1)证明:CD⊥平面PAC;
(2)若E为PA的中点,求证:BE
平面PCD;
(3)若直线PC与平面ABCD成角为45°,求三棱锥A﹣PCD的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://img.xkw.com/dksih/QBM/2021/7/6/2758325185167360/2758421906202624/STEM/336d6b2f10fe444d9db2ca99252edaab.png?resizew=176)
(1)证明:CD⊥平面PAC;
(2)若E为PA的中点,求证:BE
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
(3)若直线PC与平面ABCD成角为45°,求三棱锥A﹣PCD的体积.
您最近一年使用:0次
2021-07-06更新
|
846次组卷
|
4卷引用:13.3 空间图形的表面积和体积-2020-2021学年高一数学同步课堂帮帮帮(苏教版2019必修第二册)
(已下线)13.3 空间图形的表面积和体积-2020-2021学年高一数学同步课堂帮帮帮(苏教版2019必修第二册)(已下线)13.3空间图形的表面积和体积-2021-2022学年高一数学10分钟课前预习练(苏教版2019必修第二册)吉林省长春市第八中学2020-2021学年高一下学期期中数学试题云南省昭通市绥江县第一中学2020-2021学年高一下学期期末考试数学试题
解题方法
2 . 如图,已知点C是圆心为O半径为1的半圆弧上从点A数起的第一个三等分点,
是直径,
,直线
平面
.
![](https://img.xkw.com/dksih/QBM/2020/6/24/2491721298788352/2492093715152896/STEM/89ff5873337a462f8dcac6de0a5d571f.png?resizew=204)
(1)证明:
;
(2)若M为
的中点,求证:
平面
;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/2020/6/24/2491721298788352/2492093715152896/STEM/89ff5873337a462f8dcac6de0a5d571f.png?resizew=204)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc1f76257275ab4b04f9bc913535670.png)
(2)若M为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280247d7df395bb9ea78c51e67b458d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8010e1a73f05117a278860c1c0c7f147.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
您最近一年使用:0次
解题方法
3 . 如图,已知四棱锥
中,底面
为直角梯形,
,
,且
,
,
,点
为
中点,平面
平面
,直线
与平面
所成角的正切值为
.
![](https://img.xkw.com/dksih/QBM/2020/7/22/2511299890331648/2512911043289088/STEM/98d2a3011f7e4dddb1b5e1f3435bcc6b.png?resizew=250)
(1)求证:
平面
;
(2)求四棱锥
的体积;
(3)用一个平面去截四棱锥
,请作出一个平行四边形截面(无须证明),并写出你能作出的平行四边形截面的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc7f759828fe6a2e65e7c43070237f9.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/829018a6ca0aff95d89e3f7cd943274e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/2020/7/22/2511299890331648/2512911043289088/STEM/98d2a3011f7e4dddb1b5e1f3435bcc6b.png?resizew=250)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982d01f052709b72afeaf1015fc7acc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(3)用一个平面去截四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
4 . 斜棱柱
中,侧面
面
,侧面
为菱形,
,
,
分别为
和
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/e68c5ead-ee9f-458f-86b6-f8fd81ad7003.png?resizew=273)
(1)求证:平面
平面
;
(2)若三棱柱的所有棱长为
,求三棱柱
的体积;
(3)
为棱
上一点,若
,请确定点
位置,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0671b4776e142e17a79af5b3f0378ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e3c9e7c05de9838c0c5d762720d3ef.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/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/4/e68c5ead-ee9f-458f-86b6-f8fd81ad7003.png?resizew=273)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3599e2d14048d66477e736223dd591d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若三棱柱的所有棱长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026b53eedf11dfbc3092f93f4e66af5b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed8668bd6037c9b676d005f56f4d2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
5 . 正方体
的棱长为2,
分别是
的中点.![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc54c1c5160a8e9c2acc60b737a1f182.png)
面
;
(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/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deedcb96962d9c30e1e88b16d54c4e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc54c1c5160a8e9c2acc60b737a1f182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d47e5be88e89d0d042c56d2d6942b0.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d47e5be88e89d0d042c56d2d6942b0.png)
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7日内更新
|
1467次组卷
|
4卷引用:专题06 空间角、距离的计算-期末考点大串讲(苏教版(2019))
(已下线)专题06 空间角、距离的计算-期末考点大串讲(苏教版(2019))四川省大学考联盟2024届高三三模联考数学(文科)试题福建省厦门双十中学2024届高三下学期高考热身考试数学试题(已下线)专题08 立体几何大题常考题型归类-期末考点大串讲(人教B版2019必修第四册)
名校
解题方法
6 . 如图所示,在长方形
中,
,
为
的中点,以
为折痕,把
折起到
的位置,且平面
平面
.
;
(2)求四棱锥
的体积;
(3)在棱
上是否存在一点P,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8b40d14544a9be0bebdb276f0fa865.png)
平面
,若存在,求出点P的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c79e56bc6f1db8f446fc5bd34a08865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b43490ca09467a4c8cd8cfe91c94e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f9c64303370347131dd9d8c5c70c01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fd4f68511d2393905617bfdeddddec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ff27eea7545bb06f9472f91290c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c75d1b97dc32e2b99bccd4d8a02ef17.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7d528d7d5aea71bb3d9df16055c2a7.png)
(3)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d226aef207ce71a381d6f63801cc9d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8b40d14544a9be0bebdb276f0fa865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67be899bc131ec1b9921ae9787c40d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
2024-05-12更新
|
1811次组卷
|
10卷引用:专题06 立体几何初步解答题热点题型-《期末真题分类汇编》(江苏专用)
(已下线)专题06 立体几何初步解答题热点题型-《期末真题分类汇编》(江苏专用)安徽省合肥市第十一中学2020-2021学年高二上学期第一次月考数学(理)试题(已下线)【新东方】杭州新东方高中数学试卷324江西省抚州市金溪县第一中学2020-2021学年高二上学期入学考试数学(理)试题湖南省邵阳市邵东市第三中学2020-2021学年高一下学期第三次月考数学试题广东省东莞市东莞实验中学2022-2023学年高一下学期5月月考数学试题广东省东莞市东莞高级中学2022-2023学年高一下学期期中数学试题重庆市永川北山中学校2022-2023学年高一下学期期中数学试题(已下线)第八章 本章综合--考点强化训练【第一练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)专题04 第八章 立体几何初步(2)-期末考点大串讲(人教A版2019必修第二册)
7 . 如图,四面体
中,
.
(1)求证:平面
平面
;
(2)若
,
①若直线
与平面
所成角为30°,求
的值;
②若
平面
为垂足,直线
与平面
的交点为
.当三棱锥
体积最大时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6c03029467212c952b89696f45456d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/23/2f9a3c3f-41a9-40b4-a456-a8b33158146b.png?resizew=164)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06123e81c41198c76a3335757fac2c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e156c3e4ffa35ed0ac6526c8d8753d.png)
①若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17622ea6f6f5afd1ad817a557e5889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d742e749b1140b21512408d555f14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be743a99c9d9c2775ced96ccf86d178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f0b8e4d79f6276b0ab054d887183a8.png)
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2024-04-19更新
|
824次组卷
|
4卷引用:江苏省南京市五所高中学校合作联盟2023-2024学年高二下学期期中学情调研数学试卷
江苏省南京市五所高中学校合作联盟2023-2024学年高二下学期期中学情调研数学试卷(已下线)模块三 专题2 解答题分类练 专题3 空间向量线性运算(苏教版)江苏高二专题02立体几何与空间向量(第二部分)江苏省扬州市扬州中学2023-2024学年高二下学期5月月考数学试题
8 . 如图,在三棱柱
中,
.
平面
;
(2)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ee282fe2fb0954b12fbc1bea093b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dee56b9f36ba8f76fe67b76383636b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da5a89f5938fe9ac2f86aab28e334dc.png)
您最近一年使用:0次
2024-04-15更新
|
1223次组卷
|
5卷引用:专题06 立体几何初步解答题热点题型-《期末真题分类汇编》(江苏专用)
(已下线)专题06 立体几何初步解答题热点题型-《期末真题分类汇编》(江苏专用)青海省西宁市大通县2024届高三第二次模拟考试数学(文)试题(已下线)第13章 立体几何初步(基础卷)-重难点突破及混淆易错规避(苏教版2019必修第二册)(已下线)专题3.6空间直线、平面的垂直-重难点突破及混淆易错规避(人教A版2019必修第二册)湖南省永州市部分学校2023-2024学年高一下学期6月质量检测卷数学试题
名校
解题方法
9 . 在直三棱柱
中,点D,E分别为棱AB,
的中点,点F在棱
上.
平面CDE,并证明;
(2)若多面体
的体积为直三棱柱体积的
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4b704ed06bd72367cc20c54bce7969.png)
(2)若多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7aafc0421a1e01de7bde49a6291ed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16d09692f7b0fb5633964437202d21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4313f14d9304509745287e0250e17c.png)
您最近一年使用:0次
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解题方法
10 . 如图,在三棱柱
中,
是边长为2的等边三角形,四边形
为菱形,
,三棱柱
的体积为3.
平面
;
(2)若
为棱
的中点,求平面
与平面
的夹角的正切值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8db421b3e8872ee5add4480da4a291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc7e774e4ae40c23bf4ceed179230ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5888bec948373f3854258ad80171073d.png)
您最近一年使用:0次
2024-06-08更新
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1026次组卷
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3卷引用:期末押题卷02(考试范围:高考全部范围)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)
(已下线)期末押题卷02(考试范围:高考全部范围)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)河北省沧州市部分高中2024届高三下学期二模考试数学试题河北省沧州市盐山中学2024届高三三模数学试题