Respostas

2013-04-07T11:08:11-03:00

180º--------pi rad
60º---------x
180º/60º= pi/x
3=pi/x
3x=pi
x= pi/3

6 3 6
2013-04-07T11:12:46-03:00

180° graus equivale a

\pi rad

Pela regra de 3:

180° ------- \pi rad

60° ---------      x

180x= 60 . \pi rad

x = 6/18 \pi rad

x = 1/3 \pi rad

5 3 5