Question

3) Transforme em radianos:
a) 90°
b) 220°​

Answer 1

a) 180° ---------- π

90° ----------x

180x = 90π

x = 90π/180π

x = π/2

b) 180° --------π

220° ------ x

180x = 220π

x = 220π/180

x = 22π/18

x = 11π/9

Answer 2

a) 180º = π

90º = x

x = (90π)/180

x = π/2

____________

b) 180º ⇒ π rad

220º ⇒ x rad

180x = 220π

x = 220π/180

x = 22π/18

x = 11π/9

Resposta:

11π/9 rad