Something Interesting I Learned The First Week

So I was sitting there in Jackson's class in the first week of school. We were talking about radians relations to circles. Mr.Jackson said there were 2Pi radians in EVERY circle. I didn't really understand it right away, but as I thought about it more, it started to make plenty of sense to me. I think about it every once and a while now for some reason, it's not even a hard concept to grasp. I just think that this fact is so crazy a weird. We learned about Pi in about middle school but it's not until classes like this that make you realize how much it is actually used and it's relations to all circles.