Respostas

2014-03-25T16:08:55-03:00
Rad= 180
x=60
(multiplique cruzado)
60 rad  x=180
x=180/60=30 rad=30 graus
2014-03-25T16:10:51-03:00
Se 
π = 180°

180/60 = 3

então 
π/3 = 60º
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