1、圆周率表格(圆的周长)C=d或C=x2r (圆的面积)S=rxr 圆周率3.14 1=3.1421=65.9441=128.7461=191.5481=254.34 2=6.2822=69.0842=131.8862=194.6882=257.48 3=9.4223=72.2243=135.0263=197.8283=260.62 4=15.5624=75.3644=138.1664=200.9684=263.76 5=15.725=78.545=141.365=204.185=266.9 6=18.8426=81.6446=144.4466=207.2486=270.04 7=21.9827
2、84.7847=147.5867=210.3887=273.18 8=25.1228=87.9248=150.7268=213.5288=276.32 9=28.2629=91.0649=153.8669=216.6689=279.4610=31.430=94.250=15770=219.890=282.611=34.5431=97.3451=160.1471=222.9491=285.7412=37.6832=100.4852=163.2872=226.0892=288.8813=40.8233=103.6253=166.4273=229.2293=292.0214=43.9634=106
3、7654=169.5674=232.3694=295.1615=47.135=109.955=172.775=235.595=298.316=50.2436=113.0456=175.8476=238.6496=301.4417=53.3837=116.1857=178.9877=241.7897=304.5818=56.5238=119.4658=182.1278=244.9298=307.7219=59.6639=122.4659=185.2679=248.0699=310.8620=62.840=125.660=188.480=251.2100=31413.1447147.589329
4、2.0226.2848150.7294295.1639.4249153.8695298.3412.565015796301.44515.751160.1497304.58618.8452163.2898307.72721.9853166.4299310.86825.1254169.56100314928.2655172.71031.456175.841134.5457178.981237.6858182.121340.8259185.261443.9660188.41547.161191.541650.2462194.681753.3863197.821856.5264200.961959.6
5、665204.12062.866207.242165.9467210.382269.0868213.522372.2269216.662475.3670219.82578.571222.942681.6472226.082784.7873229.222887.9274232.362991.0675235.53094.276238.643197.3477241.7832100.4878244.9233103.6279248.0634106.7680251.235109.981254.3436113.0482257.4837116.1883260.6238119.3284263.7639122.4685266.940125.686270.0441128.7487273.1842131.8888276.3243135.0289279.4644138.1690282.645141.391285.7446144.4492288.88