Question

how would you change this degrees into radians?

120°

I really need to know the exact steps

Answer 1

well an easy way is to use the fact

\[\pi = 180\]

so 1 radian = 180/pi

or 1 degree = pi/180

Answer 2

there are some basics

90 = pi/2 45 = pi/4 60 = pi/3 30 = pi/ 6 etc

Answer 3

so 120 degrees = pi/180 * 120 = (2pi)/3