Question

Expresse em radianos
a) 300°
b) 20°

Answer 1

Boa Tarde!

a) 300°

πRad-------180°

  x----------300°

180x=300

x=300/180 → 150/90 → 75/45 → 25/15 → 5/3πRad

_____________________________________________

Seguindo o mesmo método da alternativa (a).

b) 20°

20/180 → 10/90 → 5/45 → 1/9πRad

_____________________________________________

Att;Guilherme Lima

Answer 2

Regra de 3 simples:

a)

180° ------- π rad

300° -------  x rad

180*x= 300*π

      x= 300π/180

      x= 5π/3 rad → Resposta:)

300 ° equivale a 5π/3 rad.

b)

180° ---------- π rad

20° ----------- x rad

180*x = 20*π

      x= 20π/180

      x= π/9 rad → Resposta:)

20° equivale a π/9 rad