2014·河北唐山·二模
名校
解题方法
1 . 某几何体的三视图如下图所示,则该几何体的体积为( )
![](https://img.xkw.com/dksih/QBM/2017/6/20/1712857334374400/1717502450556928/STEM/e6888c3bdc644f549268ca3b38f91399.png?resizew=216)
![](https://img.xkw.com/dksih/QBM/2017/6/20/1712857334374400/1717502450556928/STEM/e6888c3bdc644f549268ca3b38f91399.png?resizew=216)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2017-06-26更新
|
555次组卷
|
14卷引用:2023届甘肃省高考数学模拟试卷(三)
2023届甘肃省高考数学模拟试卷(三)2023届甘肃省高考理科数学模拟试卷(三)(已下线)2014届河北省唐山市高三年级第二次模拟考试理科数学试卷2016届福建省厦门一中高三下学期周考二理科数学试卷2016届安徽省安庆市高三第三次模拟考试数学(文)试卷2016届湖南省四大名校高三3月联考数学(理)试卷2017届湖南长沙长郡中学高三摸底考试数学(理)试卷2017届湖南长沙长郡中学高三摸底测试数学(理)试卷江西省抚州市临川区第一中学2017届高三4月模拟检测数学(文)试题河南省郑州市第一中学2017届高三4月模拟调研数学(理)试题福建省三明市第一中学2016-2017学年高一下学期第二次月考数学试题河北省衡水中学2018届高三第十次模拟考试数学(文)试题【全国百强校】河南省郑州市第一中学2018届高三12月月考数学(文)试题内蒙古赤峰市宁城县2021-2022学年高三上学期10月考数学(理)试题
名校
2 . 如图,正方体
的棱长为
,
,
是线段
上的两个动点,且
,则下列结论错误 的是
![](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/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e438a162ed349f7f25333e8f6c044e6d.png)
A.![]() |
B.直线![]() ![]() |
C.![]() ![]() |
D.三棱锥![]() |
您最近一年使用:0次
2017-06-20更新
|
678次组卷
|
3卷引用:甘肃省临夏中学2016-2017学年高一上学期期末考试数学试题
名校
解题方法
3 . 如图,正方形
的边长等于2,平面
平面
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/d386917b-e6f6-4628-a0bf-429a2055e35e.png?resizew=199)
(1)求证:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c766942d554e7f15ffec6eaacbe0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68d0f230e4bfab27ea747527c7bf400.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/18/d386917b-e6f6-4628-a0bf-429a2055e35e.png?resizew=199)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81fa367ec317fe2a30142e1c30cce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8964550c7fc31d982b1534e884ad6f52.png)
您最近一年使用:0次
名校
解题方法
4 . 在四棱锥
中,底面
为平行四边形,
,
,
,
点在底面
内的射影
在线段
上,且
,
,M在线段
上,且
.
![](https://img.xkw.com/dksih/QBM/2017/6/1/1699660059107328/1701625903489024/STEM/0deef4c57e26409c8992216e5e28e9b3.png?resizew=175)
(Ⅰ)证明:
平面
;
(Ⅱ)在线段AD上确定一点F,使得平面
平面PAB,并求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c3ec174b1ce835cc8737ff6ce57e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42ed2e5bd5a0f033e24008697bf4963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de853a263e59781532f89fdab2a0acb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833a1317d15bdad58ca21d3934a9a2b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512d2bedf562b22152302847abba0045.png)
![](https://img.xkw.com/dksih/QBM/2017/6/1/1699660059107328/1701625903489024/STEM/0deef4c57e26409c8992216e5e28e9b3.png?resizew=175)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b190c8d3d7d7d0e6e959e8a52eae90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(Ⅱ)在线段AD上确定一点F,使得平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2e2892c5e1c976ca4b591e0d7d63bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b0561df2ea2976111dd0e8aeabb419.png)
您最近一年使用:0次
2017-06-04更新
|
1548次组卷
|
4卷引用:甘肃省兰州第一中学2017届高三冲刺模拟考试数学(文)试题
名校
解题方法
5 . 如图,直三棱柱
中,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/1b60ef43-230b-4005-9ea6-86d6d8ba69c9.png?resizew=132)
(1)证明:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b3fe18de580bcb288004e1c30b54d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9ad150cb1e4cd8977d4cc3d99be17c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/1b60ef43-230b-4005-9ea6-86d6d8ba69c9.png?resizew=132)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9272bb1ab5b0bfc88be8c89a52db112e.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa58d518fe175f71265a2e405f1d253.png)
您最近一年使用:0次
2017-05-24更新
|
452次组卷
|
2卷引用:甘肃省高台县第一中学2016-2017学年高二下学期期中考试数学(文)试题
6 . 如图,在正三棱柱
中,点
,
分别是棱
,
上的点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/49d2e4d3-a0f9-4dce-9814-c847687f78f1.png?resizew=149)
(Ⅰ)证明:平面
平面
;
(Ⅱ)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23d9cb5be3ab469e69db7d63fc861f0.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/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae20245f323bd68b9070b4c097ace21.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/49d2e4d3-a0f9-4dce-9814-c847687f78f1.png?resizew=149)
(Ⅰ)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501f1c913a4ef64957a2f01ab5baa15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d82d07acbee5b207c7d053c422868f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c0089d8eb23cb703c5278aff214cd2.png)
您最近一年使用:0次
2017-05-21更新
|
967次组卷
|
4卷引用:【全国百强校】甘肃省天水市第一中学2019届高三一轮复习第六次质量检测数学(文)试题
名校
解题方法
7 . 正
的三个顶点都在球O的球面上,
,若三棱锥
的体积为2,则该球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0236d9dea89acb35d88f0857b38dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c624870eec703f7c5e9afc8ec897e9.png)
您最近一年使用:0次
2017-05-13更新
|
1215次组卷
|
6卷引用:甘肃省天水市第一中学2020-2021学年高三下学期第九次模考数学(理)试题
名校
解题方法
8 . 如图,在四棱锥
中,底面为直角梯形,
,
,
垂直于底面
,
,
,
分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/0c6f3aff-d0ca-4a2f-acfc-72d0d89125ed.png?resizew=220)
(1)求证:
;
(2)求四棱锥的体积
和截面
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0d7095ddd69d6ceaf1065b1bc2c79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf7488ccaf26541626131bceb8f1069.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/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/0c6f3aff-d0ca-4a2f-acfc-72d0d89125ed.png?resizew=220)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962515007ca98ad2d36557b60a42ad6f.png)
(2)求四棱锥的体积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a406f24b5131eb7da9127750319e52.png)
您最近一年使用:0次
2017-05-13更新
|
619次组卷
|
3卷引用:甘肃省肃南县第一中学2017届高三下学期期中考试数学(文)试题
名校
解题方法
9 . 表面积为
的球面上有四点
,
,
,
且
是等边三角形,球心
到平面
的距离为
,若平面
平面
,则棱锥
体积的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d559c89eb42798e31fdca19eafc3a582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448cbac9a1ef3de7538a6b30cdc39582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
您最近一年使用:0次
2017-05-07更新
|
621次组卷
|
8卷引用:甘肃省肃南县第一中学2017届高三4月月考数学(文)试题
10 . 如图,在四棱锥
中,
平面
,底面
是菱形,
,
为
的中点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://img.xkw.com/dksih/QBM/2017/4/25/1673309695877120/1675108154621952/STEM/7124d9a27d0842f4ba4a0a718e972224.png?resizew=184)
(Ⅰ)求证:
平面
;
(Ⅱ)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/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://img.xkw.com/dksih/QBM/2017/4/25/1673309695877120/1675108154621952/STEM/7124d9a27d0842f4ba4a0a718e972224.png?resizew=184)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb178784aa857d4d4683e650273f054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
(Ⅱ)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfad1df4b7934e08a72dad7d2e09ac51.png)
您最近一年使用:0次
2017-04-28更新
|
959次组卷
|
3卷引用:甘肃省兰州市第一中学2021-2022学年高三上学期11月居家学习阶段检测数学(文科)试题