One afternoon, a couple walks two-thirds of the way around a circular lake, the radius of which is 1.60 km. They start at the west side of the lake and head due south to begin with. What are the magnitude and direction (relative to due east) of the couple's displacement? Can someone tell me if my answers are right? The magnitude is 5.347 The direction is 60 degrees If these answers are wrong, what do I need to do to get the correct answers?