Respostas

2014-08-16T21:50:49-03:00
2014-08-16T21:50:49-03:00

20°
π rad     180
x            20  >> 20π = 180x 

x = 20π/180
x = π/9 rad

30°

π rad   180
x           30 >> 30π= 180x

x= 30π/180
x=π/6  rad


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