This interactive is for practice solving for radius, central angle (arc measure), are length, and sector area. When you select new problem, you will get a new task. Work through as many tasks as directed by your mentor. [br][br]Sketch, and label, each task. Show your reasoning fully. [br][br]Once you have completed each task, select "Show Answers" to see if you were correct. Do not erase your initial work. Re work any you missed. [br][br]Note, use your mouse/scroll to change the size and location of the circle, if desired.