Use my resources and free up some of your planning time! Four-page activity on arc length, radius, and central angle of a circle. Useful as independent practice, work in pairs, quiz, or homework! With formulas and full step-by-step answer keys. All you have to do is hit 'print' and go! Available in versions A, B, C, D so you can give unique materials to separate classes. Or scaffold as practice - > quiz prep - > quiz. This listing is version A. Questions cover both radians and degrees,