Question

expresse em radianos.
A. 20°
B.150°
C.315

Answer 1

a)
π-----180°
x-----20°
180x= 20π
x= 20π/180
x=1π/9
b)
π-----180°
x------150
180x= 150π
x=150π/180
x=5π/6
c)
π-----180°
x------315°
180x = 315π
x = 315π/180
x= 21π/12
x= 7π/4