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 Related Terms
 Chord:  A line segment that joins two points on the circumference of circle
Line Segment: The part of a line between two points on the line. Sometimes referred to as a segment.
Circumference: The distance around a circle.
Circle: The set of all points in a plane that are the same distance, called the radius, from a given point, called the center.
Diameter: The distance across a circle through its center. The line segment that includes the center and whose endpoints lie on the circle.