Drag coordinates into each box to match the angle measure.
-5pi/4 = 2pi - 5pi/4 = [8 - 5]pi / 4 = 3pi/4 = ( -√2/2 , √2/2)
23pi/6 = -pi/6 = ( √3/2 , -1/2)
120° = 2pi/3 = (-1/2, √3/2)
