1 . 大自然中有许多小动物都是“小数学家”,如图1,蜜蜂的蜂巢结构非常精巧、实用而且节省材料,多名学者通过观测研究发现:蜂巢巢房的横截面大都是正六边形.如图2,一个巢房的横截面为正六边形
,若对角线
的长约为
,则正六边形
的边长为( )
![](https://img.xkw.com/dksih/QBM/2022/10/24/3094746410770432/3094818798682112/STEM/29c47844fd374c908f1478221cc97fc3.png?resizew=301)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b512022066e781729bb8087fc0580d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://img.xkw.com/dksih/QBM/2022/10/24/3094746410770432/3094818798682112/STEM/29c47844fd374c908f1478221cc97fc3.png?resizew=301)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 下面几何体中,是圆锥的为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 如图所示的衣架可以近似看成一个等腰三角形
,其中
,
,
cm,则高
约为( )
(参考数据:,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fc5db7ac344c05465dbabcc5e3d696.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/32523c5b-66bf-415a-8e09-334af3311b38.png?resizew=223)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1816fb0bed72025e79aa4b7185055ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a5dae3b3a443748604b79401616239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c6cf2f16410d7602d14c320bb80bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(参考数据:,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae2f44d211b6cef769061ef0e7bf45f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fc5db7ac344c05465dbabcc5e3d696.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/32523c5b-66bf-415a-8e09-334af3311b38.png?resizew=223)
A.22.44cm | B.9.90cm | C.11.22cm | D.19.58cm |
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4 . 下列为负数的是( )
A.|﹣2| | B.![]() | C.0 | D.﹣5 |
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5 . 下列各式中,计算结果等于a9的是( )
A.a3+a6 | B.a3a6 | C.a10﹣a | D.a18÷a2 |
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6 . 已知反比例函数
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15c9d3e50dc0fd6aa1a75b3eb73ca71.png)
A.若点![]() ![]() |
B.当![]() |
C.其图象分别位于第一、三象限 |
D.若点![]() ![]() ![]() ![]() |
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7 . 在
中,
,
,
,P为边BC上一动点(点P不与点B,C重合),
于点E,
于点F,则EF的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff214d99784c6b23b7784bdaf3ed37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d1b7c032d7ee8ac72e3e9c1c2395c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/951c1fc85db338451d6c0cb47c862265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055768cb5702d8e95f9f4522b513ec46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27afc60684c00750ddd68546e38d669c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c96515d760a172bb22dc87e0f9d1bdd.png)
A.4.8 | B.5 | C.2.4 | D.4 |
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8 . 春运期间,海南环岛高铁共发送旅客328000人次,数据328000用科学记数法表示为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如图,已知
,AF交CD于点E,且
,
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/8154d2d4-e9d5-4bf7-841f-1865463882b7.png?resizew=212)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f927a269dea9ffbf797af0a35e4a335d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6bc83e86d6baf0bc085218644c7c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a47c2c0e67b82dc3f27028aa183873e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fa3492cd1ac2b3f9278d3fe4cd4fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/23/8154d2d4-e9d5-4bf7-841f-1865463882b7.png?resizew=212)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
10 . 不等式组
的解集在数轴上表示为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d46364a173b537b673cdd74d8f1fcdf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-10-20更新
|
211次组卷
|
3卷引用:海南省三亚市三亚青林学校2022-2023学年高一上学期第二次月考数学试题