名校
解题方法
1 . 如图,在三棱柱
中,侧面
为正方形,
平面ABC,
,
,E,F分别为棱AB和
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/565f186d-a895-45c4-9a6b-4555461a3994.png?resizew=178)
(1)在棱
上是否存在一点D,使得
平面EFC?若存在,确定点D的位置,并给出证明;若不存在,试说明理由;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/565f186d-a895-45c4-9a6b-4555461a3994.png?resizew=178)
(1)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8355349fbe4f1ff9350e411a621b4d.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0adfdc9ada431b02ecf9858a2eab2506.png)
您最近一年使用:0次
2022-12-30更新
|
1048次组卷
|
6卷引用:四川省广安市2023届高三第一次诊断性考试数学(文)试题
四川省广安市2023届高三第一次诊断性考试数学(文)试题四川省眉山市2023届高三第一次诊断性考试数学(文)试题四川省资阳市2023届高三第二次诊断性考试文科数学试题四川省雅安市2023届高三第一次诊断性考试数学(文)试题四川省成都市成都外国语学校2022-2023学年高三上学期期末数学文科试题(已下线)8.6.3平面与平面垂直(第2课时平面与平面垂直的性质定理)(精练)-【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)
名校
解题方法
2 . 如图,四棱锥
的底面是菱形,
平面
,点
,
分别为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/87e726e1-3f4b-45f8-aabd-90e1d31d6a42.png?resizew=173)
(1)求证:平面
面
;
(2)求证:
平面
.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac4ee9a98647379757a6f643fb73438.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/87e726e1-3f4b-45f8-aabd-90e1d31d6a42.png?resizew=173)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcafa398cc6b6079883e7ad153eb62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068f29d671d76d1e95ba3a4eaff5b96.png)
您最近一年使用:0次
2022-11-29更新
|
512次组卷
|
3卷引用:四川省巴中市平昌县平昌中学2022-2023学年高二上学期第二次月考理科数学试题
四川省巴中市平昌县平昌中学2022-2023学年高二上学期第二次月考理科数学试题四川省巴中市平昌县平昌中学2022-2023学年高二上学期第二次月考文科数学试题(已下线)第30讲 面面垂直的判定定理及性质2种题型
名校
解题方法
3 .
是等腰直角三角形,
且
,四边形
是直角梯形,
,
,且
,平面
平面
.
平面
;
(2)若点
是线段
上的一个动点,问点
在何位置时三棱锥
的体积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66cef506a91c5e28723f6f19895c27b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51b89f545616ef48f3706850107ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0295d3385f3ec11ad4d77d39d2e68ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3e2bed5ce5fe466395d2f5743d335b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95475bfc06e884754eb4a455c3f434e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4d775e9fb8bca58a25e75d5b21b05f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8489844bd624d57217200c7a4a13100b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b9f96b8ecc3cb000bb2f030809f225.png)
您最近一年使用:0次
2022-12-19更新
|
793次组卷
|
5卷引用:四川省广安市第二中学校2022-2023学年高三上学期一诊模拟考试数学(文)试题
四川省广安市第二中学校2022-2023学年高三上学期一诊模拟考试数学(文)试题四川省遂宁市安居育才中学2022-2023学年高三上学期“一诊”模拟考试数学(文)试题(已下线)专题08 立体几何解答题常考全归类(精讲精练)-3(已下线)第八章立体几何初步章末题型大总结(精讲)(3)-【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)专题突破:空间几何体的动点探究问题-同步题型分类归纳讲与练(人教A版2019必修第二册)
名校
解题方法
4 . 如图,正方体
边长为
分别为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/714114eb-d0f5-4714-b1fb-0c2a888836c3.png?resizew=175)
(1)求证:
平面
;
(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/720bfd8764a5f9a61eae4cf4c241c749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6d9ef8efe6b947b6f5aa1ee95cd5f9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/714114eb-d0f5-4714-b1fb-0c2a888836c3.png?resizew=175)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
您最近一年使用:0次
2022-12-17更新
|
1182次组卷
|
7卷引用:四川省绵阳市开元中学2021-2022年学年高一下学期期末适应性质量检测文科数学试题
四川省绵阳市开元中学2021-2022年学年高一下学期期末适应性质量检测文科数学试题四川省达州市万源市万源中学2023-2024学年高二上学期10月月考数学试题山西省八校联考2020-2021学年高二上学期12月月考数学(理科)试题(已下线)空间直线、平面的平行(已下线)13.2 基本图形位置关系(分层练习)陕西省西安工业大学附属中学2022-2023学年高一下学期第二次月考数学试题(已下线)核心考点07空间直线、平面的平行-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)
解题方法
5 . 如图,四棱锥
中,
,平面
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/5ae4e2c7-ff29-43ca-abdf-9b217e796054.png?resizew=200)
(1)求证:
;
(2)设
,点N在棱
上,
,求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85583e5dd034a5022f641521b28edbd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235d1553f6806c1eee3b17b94d23f0f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21665d21bbfb04410c78345de1fd15ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/5ae4e2c7-ff29-43ca-abdf-9b217e796054.png?resizew=200)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07789d6a8259ac89144caa816aaaf47d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9ce4218f4914fcf580053c0e666dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ce55c26c4edb5e676d68e1b42ca335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3182489b9bc1967c29649453eae92203.png)
您最近一年使用:0次
2022-11-24更新
|
792次组卷
|
4卷引用:四川省泸州市2022-2023学年高三上学期第一次教学质量诊断性考试数学(文)试题
四川省泸州市2022-2023学年高三上学期第一次教学质量诊断性考试数学(文)试题(已下线)8.6.2直线与平面垂直的性质定理(第2课时)(精练)-【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)第29讲 线面垂直证线线平行和垂直2种题型(已下线)8.6.2 直线与平面垂直(2) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)
6 . 已知直线
和圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1079169a37ac0315c495da009e6a39.png)
(1)证明:无论λ取何值,直线l始终与圆C有两个公共点;
(2)若l与圆C交于A,B两点,求弦长|AB|的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441d77cf1eacf5128ea304ad58f5b8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1079169a37ac0315c495da009e6a39.png)
(1)证明:无论λ取何值,直线l始终与圆C有两个公共点;
(2)若l与圆C交于A,B两点,求弦长|AB|的最小值.
您最近一年使用:0次
2023-01-16更新
|
388次组卷
|
2卷引用:四川省成都市蓉城名校联盟2022-2023学年高二上学期期末联考文科数学试题
名校
解题方法
7 . 如图,在正方体
中,
是
的中点,
,
,
分别是
,
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/b65b6956-306b-47d1-9a7e-c421c859a0e4.png?resizew=200)
(1)求证:平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
平面
;
(2)若正方体棱长为1,过
,
,
三点作正方体的截面,画出截面与正方体的交线,并求出截面的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/b65b6956-306b-47d1-9a7e-c421c859a0e4.png?resizew=200)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
(2)若正方体棱长为1,过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
您最近一年使用:0次
2022-12-14更新
|
715次组卷
|
6卷引用:四川省内江市威远县威远中学校2022-2023学年高二上学期期中数学文科试题
四川省内江市威远县威远中学校2022-2023学年高二上学期期中数学文科试题广东省广州市第四十一中学2021-2022学年高一下学期4月月考数学试题广东省广州市培英中学2021-2022学年高一下学期期中数学试题四川省眉山市青神县青神中学校2022-2023学年高一下学期6月月考数学试题(已下线)8.5.3平面与平面平行(精练)-【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)专题08 空间直线与平面的平行问题(1)-期中期末考点大串讲
解题方法
8 . 如图,在四棱锥
中,
面
,
,点
分别为
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/6ca73ce6-b7a7-4f56-8e8d-211729919c00.png?resizew=172)
(1)证明:直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
平面
;
(2)求点
到平面
的距离.
![](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/619dc0262b1bb806dde91dd5ff428a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4762d59261265112fef9ac74d5bb9a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f174f340eba153b73cfc03dabd0df888.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/29/6ca73ce6-b7a7-4f56-8e8d-211729919c00.png?resizew=172)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67be899bc131ec1b9921ae9787c40d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在四棱锥
中,底面ABCD为菱形,E,F分别为SD、BC的中点.
(1)证明:
平面SAB;
(2)若平面SAD⊥平面ABCD,且
是边长为2的等边三角形,
.求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/24/d0c9301d-4e9f-44b8-86c4-71fd4f720151.png?resizew=169)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
(2)若平面SAD⊥平面ABCD,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f868746f53fd105432d3558ae11df90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eee296a7d9fba487f1485c61580196f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
您最近一年使用:0次
2023-05-23更新
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2卷引用:四川省泸州市2022-2023学年高二上学期期末考试文科数学试题
名校
解题方法
10 . 如图,在正三棱柱
(底面为正三角形的直棱柱)中,
,
为
的中点,
为侧棱
上的点.
![](https://img.xkw.com/dksih/QBM/2022/11/28/3119366565789696/3120963764862976/STEM/1c82dbbb2b084c20bd3c7e930c79b75f.png?resizew=169)
(1)当
为
的中点时,求证:
平面
;
(2)是否存在点
,使得三棱柱被平面
分成的上下两部分体积关系为
,若存在,求
的长,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae07e0018faaeb9365b82e1be8c193d.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/2022/11/28/3119366565789696/3120963764862976/STEM/1c82dbbb2b084c20bd3c7e930c79b75f.png?resizew=169)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5edfe97aeab0cf16b40fa9d2e15f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea84e9242d2667cd6a0f7436425ad418.png)
(2)是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea84e9242d2667cd6a0f7436425ad418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598814aa24eed727fc46eb77fd53e5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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2022-11-30更新
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3卷引用:四川省成都市金苹果锦城第一中学2022-2023学年高三上学期期中考试数学(文)试题
四川省成都市金苹果锦城第一中学2022-2023学年高三上学期期中考试数学(文)试题四川省仁寿第一中学校南校区2022-2023学年高二上学期12月月考数学(文)试题(已下线)第一章 点线面位置关系 专题一 空间平行关系的判定与证明 微点4 直线与平面平行的判定与证明综合训练【基础版】