## Algebra 2 (1st Edition)

Let x be the angle measure from the diagram. The standard position is drawn from the x-axis clockwise. However since the rotation of the terminal side of the angle is counterclockwise, our angle is positive. This gives: $$360 + 180 \leq x \leq 360 + 180 + 90\\540 \leq x \leq 630$$ The only positive angle measure that is between those values is 570 degrees. Hence, the correct answer is C.