badman has bad day everyday
. . . phi . d = keliling lingkaran . phi = 22/7 . d = 2 . r . . .
presiden ke 7 . . . jika r = 7 . maka : . phi . d . = 22/7 . 2 . 7 = 44 . . 44 kali keliling di LINGKARAN SETAN . . . .