Question

Points `(5 ,2 )` and `(4 ,9 )` are `(5 pi)/3` radians apart on a circle. What is the shortest arc length between the points?

Answer 1

see the link

Explanation:

http://socratic.org/questions/points-8-2-and-8-1-are-5-pi-3-radians-apart-on-a-circle-what-is-the-shortest-arc#235703