Answer:
300° - 720°
Explanation:
Co-terminal angles: Angles that have the same initial side and the same terminal sides.
The co-terminal angle is found by adding or subtracting 360°n (or 2πn if working in radians) to the given angle.
Given angle:
Therefore, co-terminal angles of 300° are:
⇒ 300° + 360°n = 660°, 1020°, ...
⇒ 300° - 360°n = -60°, -420°, ...
Therefore, the expression that finds the measure of an angle that is co-terminal with a 300° angle is one that adds or subtracts a multiple of 360°:
300° - 2(360°) = 300° - 720°