One radian = 180/pi or about 57.3 degrees (pi = about 3.14).
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One radian is about 57.3 degrees
For every 360 degrees, there are 2 pi radians. Therefore, there are about 57.2958 degrees for every radian.
1 radian = 360/tau (or 180/pi) degrees.
-120 degrees = ~-2.0944 radians
One radian is approximately equal to 57.2958 degrees. Therefore 2πrad is equal to 360 degrees, and πrad equals 180 degrees.