1. WARM UP
Graph y = -2/3x + 5

2. Circles
Definition: The set of all points in a plane that are equidistant from a given point called the center of a circle V

3. Chord: A segment whose endpoints are on the circle
Radius: A segment whose endpoints are the center and any point on the circle.
Chord: A segment whose endpoints are on the circle
Diameter: a chord that contains the center of the circle E F D B C A

4. The diameter is twice the radius or The radius is half the diameterB
BC = 12
AB = ?
AB = 26
AC = ? C A

5. Circumference: The distance around a circle.or
Circumference =
π d B
BA = 14
Circumference = ?
AC = 3
Circumference = ? C A

6. Central Angle: An angle whose vertex is the center of the circle
Minor Arc: All the points inside the central angle
Major Arc: The rest of the points on the circle outside the minor arc
Central Angle <ACB A
Minor Arc B
Major Arc C D