Question

Determine,em ridianos ,a medida equivalentes a:

(A)315°
(B)330°
(C)310°
(D)280°

Answer 1

a) 180° ----------  πrad
    315° -----------   x
180.x = 315 πrad
x = 315° πrad / 180
x = 7/4πad

b) 180° --------- πrad
    330° --------   x
180.x = 330πrad
x = 330πrad / 180
x = 11/6πrad

c) 180 --------- πrad
    310 ---------  x
180.x = 310πrad

x = 310πrad / 180
x = 31/18πrad

d) 180 ---------- πrad
    280 ---------- x

180.x = 280πrad
x = 280πrad / 180

x = 14/9πrad