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 Related Terms
 Inscribed Angle:  An angle is an inscribed angle if and only if its vertex lies on a circle and its sides contain chords of the circle. The measure of an inscribed angle is one half the measure of the arc that it creates.
Angle: Region between two rays or the amount of rotation about a fixed point.
Inscribed Polygon: A polygon is inscribed in a circle if and only if each of its vertices lie on the circle.
Arc: Part of a circle; the curve between two points on 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.