Question

expresse em radianos 30°

Answer 1

180º = pi rad 30º = x rad 180 x= 30 pi X = 30 pi / 180 X = pi / 6 rad

Answer 2

360=2π
180=π
90=π/2

180----------π
 30-----------x

Multiplicando cruzado

180x=30π
x=30π/180
x=π/6