# Angular Revolution

Hey, I ran into a few things about angular quantites and am a little confused on finding the number of revolutions something such as a tire would make. Would the distance traveled divided by a circumference of a circle equal the number of revolutions? I was finding that there are equations that show an angular displacement divided by 2 pi, so if a radius is known is it useful or not? I couldn't decide whether to divide anything by a radius of Circumference or just 2 pi. Also, with angular displacement would it work to use just displacement in linear distances? Thanks!

brewnog