正多角形の面積と円周率

3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30

1.2990,2.0000,2.3776,2.5981,2.7364,2.8284,2.8925,2.9389,2.9735,3.0000,3.0207,3.0372,3.0505,3.0615,3.0706,3.0782,3.0846,3.0902,3.0949,3.0991,3.1027,3.1058,3.1086,3.1111,3.1133,3.1153,3.1171,3.1187

5.1962,4.0000,3.6327,3.4641,3.3710,3.3137,3.2757,3.2492,3.2299,3.2154,3.2042,3.1954,3.1883,3.1826,3.1779,3.1739,3.1705,3.1677,3.1652,3.1631,3.1613,3.1597,3.1582,3.1570,3.1558,3.1548,3.1539,3.1531