What is the radius of 12 millimeters

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .