A dancer completes 2.6 revolutions in a pirouette. What is her angular displacement?

Answer 1

2.6 * 2 pi radians or 2.6 * 360 degrees

Answer 2

She is only 0.6 revolutions from the starting point:
2.6-2 = 0.6 rev.
Disp. = 0.6 * 360 = 210 degrees.