名校
解题方法
1 . 已知四棱锥
的正视图为等腰直角三角形,俯视图中正方形的边长为3.
![](https://img.xkw.com/dksih/QBM/2020/9/13/2549125092319232/2550535845994496/STEM/cdb55ede16f843689c81df9c7789ece8.png?resizew=373)
(1)求四棱锥
的体积;
(2)若平面
与平面
的交线为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/2020/9/13/2549125092319232/2550535845994496/STEM/cdb55ede16f843689c81df9c7789ece8.png?resizew=373)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56adc934c9ad3cb261c5cbdc346b9631.png)
您最近一年使用:0次
名校
解题方法
2 . 从一张半径为6的圆形铁皮中裁剪出一块扇形铁皮(如图1阴影部分),并卷成一个深度为
米的圆锥筒(如图2).若所裁剪的扇形铁皮的圆心角为
.
![](https://img.xkw.com/dksih/QBM/2020/12/11/2611941494095872/2615308451815424/STEM/0db68c1d7d714c2e99cbd1f91c27bd9c.png?resizew=554)
(1)求圆锥筒的容积;
(2)在(1)中的圆锥内有一个底面圆半径为
的内接圆柱(如图3),求内接圆柱侧面积最大时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6246d2d994460b7d275ddcc9687f283.png)
![](https://img.xkw.com/dksih/QBM/2020/12/11/2611941494095872/2615308451815424/STEM/0db68c1d7d714c2e99cbd1f91c27bd9c.png?resizew=554)
(1)求圆锥筒的容积;
(2)在(1)中的圆锥内有一个底面圆半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2020-12-16更新
|
395次组卷
|
6卷引用:安徽省合肥一六八中学2019-2020学年高二上学期期中数学(文)试题
安徽省合肥一六八中学2019-2020学年高二上学期期中数学(文)试题安徽省合肥168中学2019-2020学年高二(上)期中数学(文科)试卷题山西省运城中学、芮城中学2020-2021学年高二上学期期中数学(理)试题上海市华东师范大学附属东昌中学2022-2023学年高二上学期期末数学试题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(已下线)第02讲 8.1基本立体图形(第2课时)(1)-【帮课堂】(人教A版2019必修第二册)
名校
解题方法
3 . 如图,三棱锥
中,
平面
,
,
,
,E为
的中点,F为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/75264713-d9b7-4952-94a1-c10ff8ae6b22.png?resizew=218)
(1)证明:
平面
;
(2)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f9157fce2a8339d281178c7c0bccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65aff0abef2633a6c96690a43285d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea0df817e3e2cd95b9cd8f73386834c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/75264713-d9b7-4952-94a1-c10ff8ae6b22.png?resizew=218)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a247c4f11824d034046f88fc79b069f5.png)
您最近一年使用:0次
2020-08-10更新
|
302次组卷
|
2卷引用:安徽省高中教科研联盟2019-2020学年高二下学期期末联考文科数学试题
名校
解题方法
4 . 如图,在四棱锥P—ABCD中,底面ABCD是边长为2的正方形,PA
平面ABCD,E为PD的中点.
![](https://img.xkw.com/dksih/QBM/2020/7/29/2516212501741568/2516601502433280/STEM/dfa2a480db124fe9ac4a7f5d1e22b2c2.png?resizew=199)
(1)证明:
平面
;
(2)若三棱锥C—ADE的体积为
,求PC与底面所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://img.xkw.com/dksih/QBM/2020/7/29/2516212501741568/2516601502433280/STEM/dfa2a480db124fe9ac4a7f5d1e22b2c2.png?resizew=199)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa69a2247ad4d5231aa361349b12f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
(2)若三棱锥C—ADE的体积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c14ff9b66f21c05e52dc3c8908c2df.png)
您最近一年使用:0次
2020-07-29更新
|
1189次组卷
|
3卷引用:安徽省合肥一中2020-2021学年高二上学期10月段考数学(理)试题
5 . 在如图所示的多面体中,
平面
,四边形
为平行四边形,点
分别为
的中点,且
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/a7662aef-6df9-4089-b456-031049af6258.png?resizew=190)
(1)求证:
平面
;
(2)若
,求该多面体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54032c35995fca06253098de5e4f8ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4775eb97d296048272d85829ea6474b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c31e6af4a2b5870366b9774e938bfe1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/a7662aef-6df9-4089-b456-031049af6258.png?resizew=190)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91153987852dcb546b415c78999f939.png)
您最近一年使用:0次
6 . 如图,四棱锥
,
平面
,底面
为梯形,
,
,
,
,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/a44dd0d9-31ee-46ae-8aee-1aee4a7dd1a5.png?resizew=147)
(1)证明:直线
;
(2)若平面
与棱
交于
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.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/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c985b2a5d41205c53ab4077537c2feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4444f95be7eea686c333f700f9126c96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6493e483da389b042b9e290502ff38ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/a44dd0d9-31ee-46ae-8aee-1aee4a7dd1a5.png?resizew=147)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4567ae3f7827588855f39569d4f7c5.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14eec658f69c267a70c1e8f9b744e282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee640f42eb28a85741668f864f486b0e.png)
您最近一年使用:0次
2020-05-25更新
|
339次组卷
|
2卷引用:安徽省合肥市肥东县综合高中2022届高三下学期5月监测(最后一卷)理科数学试题
7 . 如图,四棱锥
中,侧面
为等边三角形且垂直于底面
,
,
,
是
的中点.
(1)证明:直线
平面
;
(2)若
的面积为
,求四棱锥
的体积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78aafccd397e9c88a567abf4993d40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af36689a2d2a5f999b3b5859a3c9faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2020/5/12/2461205149810688/2462067895451648/STEM/31dc889a8bbb4dd985decc40df6399f8.png?resizew=238)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b12efb03327f461e868b2ea433f9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eaa6eea78e806a9cf74f232ccff8c4b.png)
您最近一年使用:0次
名校
解题方法
8 . 已知正三棱柱
所有棱长均为2,
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/a9f26173-a2c6-4b5a-8660-702d3ae05c08.png?resizew=134)
(1)求证:
平面
;
(2)求三棱锥
体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9debd13454918684cf8e07ce210516fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/a9f26173-a2c6-4b5a-8660-702d3ae05c08.png?resizew=134)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa6d64d90b17044cb17ff3061420c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1369f53ea899e522cd567138d7e667bf.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef92c57971bf63ec6d77f8f654774dd.png)
您最近一年使用:0次
2020-05-04更新
|
309次组卷
|
3卷引用:安徽省淮北市第一中学2019-2020学年高三下学期第五次考试数学(文)试题
名校
解题方法
9 . 三棱锥
中,平面
平面
,
为等边三角形,
且
,
、
分别为
、
的中点.
平面
;
(2)求证:平面
平面
;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8704811c9c5dba854310ae0de2ba6b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7eaac66c8a1d94860390668ffecfaba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bc7774144c164f7ebaeca54fa657e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/dd4fce8e923062b9779553d6f282895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eed6757a4ff7cd9042c4078bd910583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08452588675f76da2f8d31387b3a8224.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90cacdef2c5f2a4b00a1f4f3fe77bd9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f526e2fe627bb4ddebe708c07d0a22fc.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
您最近一年使用:0次
2021-04-02更新
|
2552次组卷
|
19卷引用:安徽省阜阳市阜南实验中学2022-2023学年高二上学期第二次质量检测数学试题
安徽省阜阳市阜南实验中学2022-2023学年高二上学期第二次质量检测数学试题北京朝阳垂杨柳中学2016-2017学年高二上学期期中考试数学试题青海省西宁市第十四中学2019-2020学年高二上学期期末数学(文)试题辽宁省盘锦市第二高级中学2020-2021学年高二第一学期第一次阶段性考试数学试题(已下线)黄金卷12-【赢在高考·黄金20卷】备战2021年高考数学(文)全真模拟卷(新课标Ⅱ卷)吉林省长春市第二十中学2020-2021学年高二下学期期末数学试题福建省建瓯市芝华中学2020-2021学年高一下学期期中考试数学试题河北省邯郸市大名县第一中学2020-2021学年高一下学期5月月考数学试题重庆市西北狼教育联盟2021-2022学年高二上学期开学质量检测数学试题北京市中关村中学2021-2022学年高二上学期期中考试数学试题河南省濮阳市第一高级中学2021-2022学年高一下学期期中质量检测文科数学试题(B卷)山西省晋中市平遥县第二中学校2021-2022学年高一下学期5月月考数学试题湖南省长沙市宁乡市2021-2022学年高一下学期期末数学试题吉林省通化市梅河口市第五中学2022-2023学年高一下学期期末数学试题第十一章 立体几何初步测试题山东省滨州市渤海综合高中2022-2023学年高一下学期期末考试数学试题辽宁省丹东市凤城市第二中学2021-2022学年高二上学期第一次月考数学试题(已下线)专题23 立体几何解答题(文科)-3【人教A版(2019)】专题14立体几何与空间向量(第三部分)-高一下学期名校期末好题汇编
名校
解题方法
10 . 在等腰直角三角形
中,
,点
分别为
的中点,如图1.将
沿
折起,使点A到达点P的位置,且平面
平面
,连接
,如图2.
的中点,求证:
平面
;
(2)当三棱锥
的体积为
时,求点B到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.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/4ac48b9ac8efbf41d6ab5242d247bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce735bef8c7fc6a1ddcebd449e38f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829a1a887ceba13dd8551b1e3604bf6f.png)
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3卷引用:安徽省阜阳市界首中学2019-2020学年高一上学期期末数学试题
安徽省阜阳市界首中学2019-2020学年高一上学期期末数学试题河南省顶尖名校联盟2020-2021学年高二上学期12月联考数学(文科)试题(已下线)必考考点8 立体几何中综合问题 专题讲解 (期末考试必考的10大核心考点)