1 . 一个圆柱的底面直径和高都等于球
的直径,则球
与该圆柱的体积之比为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 设m,n是两条不同的直线,
,
是两个不同的平面,给出下列四个命题:
①若
,
,则
;
②若
,
,则
;
③若
,
,
,则
;
④若
,
,
,
,
,则
.
其中所有真命题的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80645381feb9746cc149da61d553974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80645381feb9746cc149da61d553974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53cd751c44ad4d9ebd8e3243e751321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab4256b2397c28db450a154d3d2a021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0d37b44de48de51555fa95d94e33f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
其中所有真命题的序号是( )
A.①②③ | B.②③④ | C.①②③④ | D.①③④ |
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解题方法
3 . 圆
被直线
所截线段的长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc12c55f2676aeb4f696f4a84e4d65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beff5e5c9df612aa7890170d9b836f39.png)
A.2 | B.4 | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知某圆柱的轴截面是面积为4的正方形,则该圆柱的内切球的体积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知圆锥的轴截面为正三角形,该圆锥的侧面积数值与其体积数值相等,则该圆锥的底面积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 用斜二测画法画三角形OAB的直观图
,如图所示,已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a633df6d1b15deeab2acd9040c7177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20f4b71022249a5444911f124431843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ff12049bb9ee867712067c6367099f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a836d2dfc31d2bfc949bac8403cf2a4e.png)
A.![]() | B.![]() | C.2 | D.4 |
您最近一年使用:0次
7 . 已知某圆锥底面半径为1,高为2,则该圆锥的外接球表面积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
8 . 已知
是三条不同的直线,
是三个不同的平面,下列命题中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
A.若![]() ![]() |
B.平面![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
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解题方法
9 . 如图,在正四棱台
中.
,
,则正四棱台
的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea565cf2a5ce54e287b0edea0f20bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86aa0650b2b5cb33357dd45b241fd584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.28 | B.26 | C.24 | D.16 |
您最近一年使用:0次
名校
解题方法
10 . 体积为1的正三棱锥的外接球的半径与底面正三角形的边长比的最小值为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次