公元263年左右,我国数学家刘徽发现当圆内接多边形的边数无限增加

公元263年左右,我国数学家刘徽发现当圆内接多边形的边数无限增加时,多边形面积可无限逼近圆的面积,并创立了割圆术。利用割圆术刘徽得到了圆周率精确到小数点后面两位的近似值3.14,这就是著名的徽率。如图是利用刘徽的割圆术设计的程序框图,则输出的n值为(参考数据:=1.732

A 12   B 24  C 36    D48

答案

B

【解析】n=6s=2.598

     n=12s=3

     n=24s=3.1056结束循环

    输出n=24

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