Since the figure A lies in the first quadrant, notice the following:
- A rotation of 90° counterclockwise would move the figure to the second quadrant.
- A rotation of 180° counterclockwise would move the figure to the third quadrant.
- A rotation of 270° counterclockwise would move the figure to the fourth quadrant.
Since the figure B lies in the fourth quadrant, then the figure A must be rotated 270° counterclockwise in order to line up with figure B.
