1. Central Angles and Arcs
Ms. Mougharbel

2. What are central angles and arcs
Central Angle: A central angle is the angle that forms when two radii meet at the center of a circle.
Remember that a vertex is the point where two lines meet to form an angle. A central angle's vertex will always be the center point of a circle.
Arc: a part of the circumference of a circle or other curve.

3. Points to remember…
Vertical Angles Theorem: Vertical angles are congruent
Degrees of a circle: 360
New!: Degree of Arc = Degree of Central Angle