1倍:3.14 2倍:6.28 3倍:9.42 4倍:12.56 5倍:15.7 6倍:18.84 7倍:21.98 8倍:25.12 9倍:28.26 10倍:31.4*11=34.54 *12=37.68 *13=40.82 *14=43.96 *15=47.1 *16=50.24 *17=53.38 *18=56.42 *19=59.56 *20=62.8 *21=65....
1倍:3.14 2倍:6.28 3倍:9.42 4倍:12.56 5倍:15.7 6倍:18.84 7倍:21.98 8倍:25.12 9倍:28.26 10倍:31.4*11=34.54 *12=37.68 *13=40.82 *14=43.96 *15=47.1 *16=50.24 *17=53.38 *18=56.42 *19=59.56 *20=62.8 *21=65....