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Acc. Math Vocabulary

Vocab on unit 3

Center A given point from which a circle is drawn.
Circle The set of all points equidistant from a given point.
Radius A segment whose endpoints are the center and any point on the circle.
Chord A segment whoes endpoints are on a circle.
Diameter A chord that contains the center of a circle.
Secant A line that intersects a circle in 2 points.
Tangent a line, ray, or segment that intersects a circle in exactly one point.
Central Angle An angle whose vertex is the center of a circle.
Arc An unbroken part of a circle.
Semicircle An arc with endpoints that are the endpoints of a diameter.
Minor Arc An arc made by a central angle less than 180 degrees.
Major Arc An arc made by a central angle more than 180 degrees.
Congruent Circles Two circles with congeruent radii
Congruent Arcs Two arcs that have the same measure and are arcs of the same circle or of congruent circles.
Inscribed Angle An angle whose vertex is on a circle and whose sides contain chords of the circle
Intercepted Arc An arc that lies in the interior of an inscribed angle and has endpoints on the angle.
Inscribed Polygon A polygon in which all verticies lie on a circle.
Circumscribed circle A circle that contains an inscribed polygon.
Created by: Austin Shea