Question

determine a medida,em radiano equivalente a:

a)30°
b)120°
c)225°
d)300°

Answer 1

a)30°
30.........x
180.......π
180x = 30π
x = 30π / 180
x = (1/60)π

b)120°
120.........x
180.......π
180x = 120π
x = 120π / 180
x = (2/3)π

c)225°
225.........x
180.......π
180x = 225π
x = 225π / 180
x = (5/4)π

d)300°
300.........x
180.......π
180x = 300π
x = 300π / 180
x = (10/6)π