Angle BAC is a central angle on circle A. BC is the arc associated with angle BAC. It is green as a minor arc and red if it is a major arc. Adjust the ca (central angle) slider to change the measure of the central angle. Drag point B to change the location of the angle. [br][br]1. When is arc BC the smallest? [br]2. For which angle measures is arc BC a minor arc? a major arc?