Respostas

2014-04-23T10:07:17-03:00
C = d . π
C = 12 . 3,14
C =  37,68 cm
1 5 1
2014-04-23T10:09:10-03:00
Formula da circuferencia->2*pi*R
Entao resolvendo
2*3.14*6
6.28*6=37.68
Taai