圆周率倍数表

1、圆周率倍数表（1100）51 n" 160.1476 n" 238.6452 n" 163.2877 n" 241.7853 n" 166.4278 n" 244.9254 n" 169.5679 n" 248.0655 n" 172.780 n" 251.256 n" 175.8481 n" 254.3457 n" 178.9882 n" 257.4858 n"182.1283 n" 260.6259 n" 185.2684

2、 n" 263.7660 n" 188.485 n" 266.961 n" 191.5486 n" 270.0462 n" 194.6887 n"273.1863 n" 197.8288 n" 276.3264 n" 200.9689 n" 279.4665 n" 204.190 n" 282.666 n" 207.2491 n" 285.7467 n" 210.3892 n" 288.8868 n" 213.529

3、3 n" 292.0269 n" 216.6694 n"295.1670 n" 219.895 n" 298.31 n 3.142 n 心 6.283 n 9.424 n 12.565 n 15.706 n 18.847 n 21.988 n 25.129 n 心 28.2610 n 心 31.411 n 34.5412 n 37.6813 n 40.8214 n 43.9615 n 47.116 n 50.2417 n 53.3818 n 56.5219 n 59.6620 n 62.826 n 81.6427 n 84.7828 n 87.

4、9229 n 91.0630 n 94.231 n 97.3432 n 100.4833 n 103.6234 n 106.7635 n 109.936 n 113.0437 n 116.1838 n 119.3239 n 122.4640 n 125.641 n" 128.7442 n " 131.8843 n " 135.0244 n " 138.1645 n " 141.3精品资料21 n 心 65.9422 n 心 69.0823 n 72.2224 n 75.3625 n 78.546 n 144.4447 n 147.5848 n&

5、quot; 150.7249 n " 153.8650 n " 15771 n " 222.9472 n " 226.0873 n " 229.2274 n " 232.3675 n " 235.596 n " 301.4497 n " 304.5898 n " 307.7299 n " 310.86100 n " 341圆的计算公式圆周率（n=圆周长童径给直径求圆的周长:给半径求圆的周长:给直径求圆的半径:给周长求圆的半径:给半径求圆的直径:给周长求圆的直径:给直径求半圆周长:给半径求半圆周长:给半径求圆的面积:c= ndc=2 ndr=d -2=2cr=c 冗 2- 2 nd=2rcd=c -=一冗c= nr+d （弓 + 弦）c= nr+2rs= nr2精品资料d给直径求圆的面积：s= n2= n( d 吃)2= n)2c给周长求圆的面积：s= n2= n ()22 n1给半径求半圆面积：s= n2 吃=n2211d给直径求半圆面积：s = n2=n (22 2 2给大圆和小圆半径