常用圆周率倍数表13.14 = 3.14 23.14 = 6.28 33.14 = 9.42 43.14 = 12.56 53.14 = 15.7 63.14 = 18.84 73.14 = 21.98 83.14 = 25.12 93.14 = 28.26 103.14 = 31.4 113.14 = 34.54 123.14 = 37.68 133.14 = 40.82 143.14 = 43.96 153.14 = 47.1163.14 = 50.24 173.14 = 53.38183.14 = 56.52 193.14 = 59.66203.14 = 62.8 253.14 = 78.5 363.14 = 113.04 493.14 = 153.86
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