Question

1 Expresse em radianos:
a) 30°
d) 210°
g) 20°
b) 15°
e) 270°
h) 150°
c) 120°
f) 300°
i) 315°
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Answer 1

Resposta:

a) 30°= (30/180)π = (1/6)π = π/6

b) 15° = 30/2 = π/6 /2 = π/12

C) 120° = 4.30° = 4. π/6 = 2π/3

D) 210° = 7.30° = 7.π/6 = 7π/6

E) 270° = 9.30° = 9. π/6 = 3π/2

F) 300° = 10.30 = 10. π/6 = 5π/4

G)20° = 180/9 = π/9

H) 150° = 5.30 = 5.π/6

i) 315°= 360 -45 = 2π -π/4 = 7π/4