1 . 如图,网格纸上小正方形的边长为1,粗线画出的是某三棱锥的三视图,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/2018/3/6/1896263308476416/1896884707303424/STEM/6bf33cf6e3df421988416b0a4e6a9c76.png?resizew=228)
![](https://img.xkw.com/dksih/QBM/2018/3/6/1896263308476416/1896884707303424/STEM/6bf33cf6e3df421988416b0a4e6a9c76.png?resizew=228)
A.![]() | B.2 | C.![]() | D.4 |
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2018-01-19更新
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5卷引用:福建省泉州市2018届高三毕业班1月单科质量检查数学文试题
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解题方法
2 . 如图,在四棱锥
中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2019/3/16/2161934634442752/2167655063764992/STEM/ec1db9b079db40ee8b1ca861050de49a.png?resizew=168)
(1)求证:
;
(2)若
,
,
为
的中点.
(i)过点
作一直线
与
平行,在图中画出直线
并说明理由;
(ii)求平面
将三棱锥
分成的两部分体积的比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db3940f180ba6947c2edcfaf4431e42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e171f4df43565ab3844a26c6a5c99569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5339e9479014ef5df6cb7a43069a795e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a967fa8ed938be0abb01b046615eab4.png)
![](https://img.xkw.com/dksih/QBM/2019/3/16/2161934634442752/2167655063764992/STEM/ec1db9b079db40ee8b1ca861050de49a.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c45c4a30c92daae1d5f6bda16e5b21.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9439553edb0c5517ba78d3625274f4a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ad76a622b81e3eaf345f8100dd1885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252053b853152bd294a8315debd00b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
(i)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
(ii)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d17909958114fe0634f8181b659817d.png)
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3 . 如图,网格纸上小正方形的边长为1,粗实(虚)线画出的是某多面体的三视图,则该多面体的体积为
![](https://img.xkw.com/dksih/QBM/2017/11/21/1822048528678912/1823292781084672/STEM/ee4e7f882ea84548a7861beb4afd1dca.png?resizew=180)
![](https://img.xkw.com/dksih/QBM/2017/11/21/1822048528678912/1823292781084672/STEM/ee4e7f882ea84548a7861beb4afd1dca.png?resizew=180)
A.64 | B.![]() | C.16 | D.![]() |
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4 . 如图,网格纸上小正方形的边长为1,粗线画出的是某几何体的三视图,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/2018/5/6/1939305482313728/1940749123043328/STEM/c5012bd020a948909096c9959c8e3aa7.png?resizew=175)
![](https://img.xkw.com/dksih/QBM/2018/5/6/1939305482313728/1940749123043328/STEM/c5012bd020a948909096c9959c8e3aa7.png?resizew=175)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2018-05-20更新
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2卷引用:【全国市级联考】福建省泉州市2018届高三第二次(5月)质量检查数学理试题
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5 . 如图,正三棱柱
中
为
的中点.
(1)求证:
;
(2)若点
为四边形
内部及其边界上的点,且三棱锥
的体积为三棱柱
体积的
,试在图中画出
点的轨迹,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f483efe20e417feea022e19e1c13020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176117b9db64a7ab40048c1ac2f442a9.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/63ae26dd-078a-41e3-a255-45c589628427.png?resizew=180)
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4卷引用:福建省泉州市2018届高三下学期质量检查(3月)数学(文)试题
福建省泉州市2018届高三下学期质量检查(3月)数学(文)试题【全国百强校】湖南省衡阳市第八中学2017-2018学年高二(实验班)下学期期末结业考试数学(文)试题河南省信阳高级中学2018-2019学年高二上学期开学考试数学试题(已下线)第三章 空间轨迹问题 专题五 微点1 翻折、旋转问题中的轨迹问题【培优版】
6 . 下面的一组图形为一四棱锥
的侧面与底面.
![](https://img.xkw.com/dksih/QBM/2017/7/8/1732911343869952/1790904252096512/STEM/84f724c722d34652b7613f924ddac8af.png?resizew=549)
(I)请画出四棱锥
的示意图,是否存在一条侧棱垂直于底面?如果存在的话,指出是示意图中的哪一条,说明理由.
(II)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
面
,
为
中点,求证:面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f7e6fc8324f9f7f826677be25a6479.png)
面
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://img.xkw.com/dksih/QBM/2017/7/8/1732911343869952/1790904252096512/STEM/84f724c722d34652b7613f924ddac8af.png?resizew=549)
(I)请画出四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.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/73f7e6fc8324f9f7f826677be25a6479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef796b46e68fe77b117ff0483d2370c.png)
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7 . 如图,网络纸的各小格都是正方形,粗线画出的是一个几何体的三视图,则这个几何体是
![](https://img.xkw.com/dksih/QBM/2018/3/7/1896898118819840/1897565847150592/STEM/9edd98d97775462a80a302800313f3d7.png?resizew=225)
![](https://img.xkw.com/dksih/QBM/2018/3/7/1896898118819840/1897565847150592/STEM/9edd98d97775462a80a302800313f3d7.png?resizew=225)
A.三棱锥 | B.四棱锥 | C.三棱柱 | D.四棱柱 |
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名校
解题方法
8 . 如图所示,网格纸上小正方形的边长为
,粗线画出的是某几何体的三视图,则此几何体的表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/371ca9cc-6d6a-4234-8c1c-2447829b1c14.png?resizew=147)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/371ca9cc-6d6a-4234-8c1c-2447829b1c14.png?resizew=147)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图,网格纸上小正方形的边长为1,粗线画出的是某几何体的三视图,则该几何体的外接球表面积为
![](https://img.xkw.com/dksih/QBM/2017/8/14/1752065879318528/1752720787021824/STEM/6f92bc9516ee4bb0963a5f3390767714.png?resizew=132)
![](https://img.xkw.com/dksih/QBM/2017/8/14/1752065879318528/1752720787021824/STEM/6f92bc9516ee4bb0963a5f3390767714.png?resizew=132)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 如图所示,格纸上小正方形的边长为1,粗实线和虚线画出的是某几何体的三视图,则该几何体的表面积为
![](https://img.xkw.com/dksih/QBM/2018/3/28/1912011638767616/1913160420933632/STEM/3afcc23a-7e90-4c5b-9c9a-9d27f90c85df.png?resizew=185)
![](https://img.xkw.com/dksih/QBM/2018/3/28/1912011638767616/1913160420933632/STEM/3afcc23a-7e90-4c5b-9c9a-9d27f90c85df.png?resizew=185)
A.![]() | B.![]() | C.![]() | D.![]() |
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