1 . 几何体的三视图如图所示,该几何体的体积是
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572934302015488/1572934307971072/STEM/d4568efa6899439ab9acea5aa001fbc0.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572934302015488/1572934307971072/STEM/d4568efa6899439ab9acea5aa001fbc0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知
,
分别为等腰直角三角形
的边上的中点,
,现把
沿
折起(如图2),连结
,得到四棱锥
.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929416380416/1572929422696448/STEM/4d14701f-a150-46d2-9a09-5c3eb4958eff.png?resizew=249)
(1)证明:无论把
转到什么位置,面
面
;
(2)当四棱锥
的体积最大时,求
到面
的距离及体积的最大值.
![](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/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c9e2fbfea1fafe33d98048a52772e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63df0f5cad1a1d8c5e6ae5f3bc8f837b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a77254d2773dfaee5d13f77e5ec39e9.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929416380416/1572929422696448/STEM/4d14701f-a150-46d2-9a09-5c3eb4958eff.png?resizew=249)
(1)证明:无论把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63df0f5cad1a1d8c5e6ae5f3bc8f837b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004dd8ad9e5a200b3869ebfc59c2446d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f233b375753611ffa7a93c2c12ef5e28.png)
(2)当四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a77254d2773dfaee5d13f77e5ec39e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f6b1a6adac644c48cab9ec4d392a152.png)
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3 . 某几何体的三视图如图,则该几何体的体积为
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929416380416/1572929422295040/STEM/139769552da347de821a3d247d99e830.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929416380416/1572929422295040/STEM/139769552da347de821a3d247d99e830.png)
A.![]() | B.![]() | C.7 | D.8 |
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4 . 如图,网格纸上小正方形的边长为2,粗线画出的是某几何体的三视图则该几何体的体积是
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929055899648/1572929061928960/STEM/d98e9e76-b3bf-400b-b64a-09d228592472.png?resizew=227)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929055899648/1572929061928960/STEM/d98e9e76-b3bf-400b-b64a-09d228592472.png?resizew=227)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
192次组卷
|
2卷引用:2016届广西来宾高中高三5月模拟理科数学试卷
5 . 已知三棱柱
的6个顶点都在球
的球面上,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd677dddc0766d808a5f2f5ba41ebda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d7281b38f94d2698a03a56ea48f1f3.png)
,则球
的直径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3101fd80e3356e2cb125a0673eda8484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd677dddc0766d808a5f2f5ba41ebda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d7281b38f94d2698a03a56ea48f1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c922e5ec6461e6fd04879cb0f660d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 如图,在四棱锥E﹣ABCD中,AB⊥平面BCE,CD⊥平面BCE,AB=BC=CE=2CD=2,∠BCE=
.
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592985382912/1572592991182848/STEM/f50aa760d4144fd2a060dbb0fe0c75b5.png)
(1)求证:平面ADE⊥平面ABE;
(2)求三棱锥A﹣BDE的体积.
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592985382912/1572592991182848/STEM/32a045fa590f4c1ba78a815e1d8b8a16.png)
![](https://img.xkw.com/dksih/QBM/2016/4/14/1572592985382912/1572592991182848/STEM/f50aa760d4144fd2a060dbb0fe0c75b5.png)
(1)求证:平面ADE⊥平面ABE;
(2)求三棱锥A﹣BDE的体积.
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7 . 已知A,B,C,D均在球O的球面上,AB=BC=1,AC=
,若三棱锥D﹣ABC体积的最大值是
.则球O的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
A.![]() | B.![]() | C.![]() | D.6π |
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8 . 如图是一个空间几何体的三视图(注:正视图也称主视图,侧视图也称左视图),其中正视图、侧视图都是由边长为4和6的矩形以及直径等于4的圆组成,俯视图是直径等于4的圆,该几何体的体积是
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572565170356224/1572565175640064/STEM/9613c37ca0f94004beed13924af242bc.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572565170356224/1572565175640064/STEM/9613c37ca0f94004beed13924af242bc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
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名校
解题方法
9 . 已知四棱锥
的顶点都在球
上,底面
是矩形,平面
平面
,
为正三角形,
,则球
的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/c6e2903ff33266528a7902ad51cf8d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc28e69c1ba0aac981256887f7dfa94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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2016-12-04更新
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6卷引用:2016届广西桂林、北海、崇左市高三3月联合调研文科数学试卷
2016届广西桂林、北海、崇左市高三3月联合调研文科数学试卷2017届河南鹤壁高级中学高三文周练10.21数学试卷四川省资阳中学校2021-2022学年高二上学期期中考试数学(理)试题四川省安岳县石羊中学2022-2023学年高二上学期期中检测数学理科试题四川省安岳县石羊中学2022-2023学年高二上学期期中检测数学文科试题(已下线)重难点08 玩转外接球、内切球、棱切球经典问题-【帮课堂】(苏教版2019必修第二册)
名校
解题方法
10 .
是同一球面上的四个点,其中
是正三角形,
⊥平面
,
,则该球的表面积为_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26300bfb92db05ea6324cf4908aca4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ff9d4fdd0d176042505b7aac016852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf64643144ce16930bd20cb438b999a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04a2f09a6d56ce328f0fa843ef8fa89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cd5b014044940992cb75756bb0c2cc.png)
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