1. The problem statement, all variables and given/known data 1)A skater glides along a circular path of radius 4.90m. a)if he coasta around one half of the circle, find the magnitude of the displacement vector b)find how far the person skated c)What is the magnitude of displacement if he skates all the way around the circle 2. Relevant equations Area of a circle = pi(radius squared) 3. The attempt at a solution -My first inclination for part a was to find the area of the circle and then multiply that by the degrees of one half the circle (180) and then do the same for c but multiply by (360). I am unsure of b. Is that the right path.