Question

Transforme em radianos
-60
-70
-80

Answer 1

a) 180 -- pi
60 --- x

180 x = 60 pi

x = 60 pi / 180 = **pi / 3 rad**

b) 180 -- pi
70 --- x

180 x = 70pi

x = 70 pi / 180 = **7pi / 18 rad**

c) 180 -- pi
80 --- x

180x = 80pi

x = 80 pi / 180 = 8pi / 18 = **4pi / 9 rad**

Espero ter ajudado!