Question

Expressando em radianos os arcos 60° e 315° 

Answer 1

π rad ----- 180°
x     ------- 60

$x=\frac{60 \pi}{180}=\frac{\pi}{3} \ rad$


π rad ----- 180°
x     ------- 315°

$x=\frac{315 \pi}{180}=\frac{7 \pi}{4} \ rad$

Answer 2

Expressando em radianos os arcos 60° e 315° 

180 --------------- π
60  --------------- x
x= (60π)/180
x= π/3 rad

180 --------------- π
315  --------------- x

x= (315 π)/180
x= 7π/4 rad