Obviously, if you are instructed to use one, use that one.
The ancient roots of measurement of the earth (geometry) and the sky (astronomy) was based upon degrees; so, if you are in geometry class or measuring a direction, such as 22° east of north, use degrees.
Radians are normal to our base 10 number system; degrees aren't. Once you are in calculus, radians occur naturally; degrees don't.
Obviously, if you are instructed to use one, use that one.
The ancient roots of measurement of the earth (geometry) and the sky (astronomy) was based upon degrees; so, if you are in geometry class or measuring a direction, such as 22° east of north, use degrees.
Radians are normal to our base 10 number system; degrees aren't. Once you are in calculus, radians occur naturally; degrees don't.