Question

As medidas dos ângulos em radianos !
a-320•
b-270•
c-900•

Answer 1

a resposta é a A ou a C

Answer 2

a) 320°      360°------2π

                   320°-----x                  x=(320.2π)/360      x=640π/360   =16/9pi.radiano

b)270°    360______2π

                270______x       x=(270.2π)/360=540π/360=3/2pi.radiano

c)900°=   360°____2π

                 900°____x        x=(900.2π)/360=50pi.radiano