# Geometry Definitions

 Circle; Set of points in space that are equidistant from a given point called the center. Chord; A segment who's endpoints are on the circle. Secant; A line that intersects the circle in exactly two points. Tangent; Line that intersects the circle in exactly one point. Point Of Tangentcy; The point where the tangent line intersects the circle. Congruent Circles; Circles that have the same radius. Concentric Circle; Circles that have the same center. Tangent Circles; Two coplanar circles that intersect at exactly one point. Common Tangent; A line that is tangent to two circles. Diameter; Chord containing the center. Central Angle; Angles who's vertex is the center of the circle. Minor Arc; Arc that is itersepted by a central angle, less then 180. Major Arc; Arc in the exterior of a central angle, more the 180. Semi-Circle; Half a circle. Inscibed Angle; Angle whose vertex is on a circle and whose sides contain chords of the circle. AuthorSpringBaby07 ID149405 Card SetGeometry Definitions DescriptionGeometry Updated2012-04-22T23:40:14Z Show Answers