Find+Arc+Length+of+Circles


 * Unit 6, Circles with and without Coordinates**


 * Find arc lengths of circles, G.C.5**


 * Learning Goal:** Derive using similarity the fact that the length of arc intercepted by an angle is proportional to the radius, and define the radian measure of the angle as the constant of proportionality.


 * Learning Cycle:**


 * Develop the Concept**


 * Solidify the Concept**
 * Practice the Concept**