Question

expresse em radianos 120º 270º 20°

Answer 1

Pi --- 180°
 x ---  120°

180x = 120pi
x = 120pi / 180
x = 2/3 pi radiano

==========================

Pi --- 180°
 x ---  270°

180x = 270pi
x = 270pi / 180
x = 3/2 pi radiano

==========================

Pi --- 180°
 x ---  20°

180x = 20pi
x = 20pi / 180
x = 1/9 pi radiano

BONS ESTUDOS!