1 . 如图所示的是欧阳修的
卖油翁
中讲述的一个有趣的故事,现模仿铜钱制作一个半径为2cm的圆形铜片,中间有边长为1cm的正方形孔
若随机向铜片上滴一滴水
水滴的大小忽略不计
,则水滴正好落人孔中的概率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/4c03e1a5-1f84-4837-9225-d43d7071e19c.png?resizew=127)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a4bbcf2e9404da66210a33f9006bb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080cd6e4fac19934612fb5907fc89e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/4c03e1a5-1f84-4837-9225-d43d7071e19c.png?resizew=127)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-03-29更新
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7卷引用:陕西省咸阳市永寿中学2020-2021学年高二下学期第一次月考理科数学试题