Hello, can someone please tell me and explain with a solution how to calculate the radian measure of an angle of, for example, alpha = -2? I got 245°.
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If alpha=-2 is the arc size, then 245.4° is the angle.
-2 / pi * 180° = -114.6°.
If you do not like negative angles, you can add 360°:
-114.6° + 360° = 245.4°.