Question

O ângulo 50° é equivalente a qual valor em radianos?

Answer 1

180 -------$\pi$
50 ----------x
180x = 50 $\pi$
x = 50/180
x= 5/18 $\pi$ rad

Answer 2

$\pi = 3,14 \\ \frac{x}{ \pi} = \frac{50}{180} \\ \frac{x}{ \pi} = \frac{5}{18} \\ \frac{x}{3,14} = \frac{5}{18} \\ 18x = 5 . (3,14) \\ 18x = 15,70 \\ x = \frac{15,70}{18} \\ x = 0,87 rad$