GLOSSARY TERMS
arc
arc length
arc measure
center of a circle
central angle of a circle
chord
diameter
intercepted arc
major arc
minor arc
radius
semicircle


Defintions
Cicle the set of all points in a plane that are equidistant from a given point in the plane known as the center of the circle.

Radius: a segment that goes from the center and goes to the circle.

Chord: a segment in a circle that intersects the circle in two points

Diameter the longest chord af a circle and it contains the center of the cicle.

arc: chord divides the circle into two arcs.

Central Angle: a central angle of a circle is an angle of a circle whose vertex is the center of the circle