Answer:
a. 48°
Step-by-step explanation:
To get an angle between 0 and 360, just keep on adding/subtraction 360° to the given angle till you find an angle in the required interval
-312 + 360 = 48°
A
Our angle is -312 degrees, but because angles on the unit circle are always periodic and repeat every 2π or 360°, that means if we add a certain multiple of 360 to -312, we should get an angle with the terminal side pointing in the same direction.
Let's add 360 to -312:
Thus, the answer is A.
