Answer:
270
Explanation:
One turn would put you in quadrant 2 and would be 90. A second turn would put you in quadrant 3 and that would be 180. A third turn would put you in quadrant 4 and that would be 270. I know that it is hard to see what I mean by a turn. It would be if you had a piece of tracing paper with the figure drawn on it and you turn the paper at the origin so that the lines at the corners would like up, each turn would be 90 more degrees.