Matching Pairs Parts of a Circle VocabularyOnline version Vocabulary terms by Sherry Tippett 1 Inscribed Angle 2 Radius 3 Diameter 4 Point of Tangency 5 Central Angle 6 Tangent 7 Arc 8 Chord 9 Circle 10 Major Arc 11 Semicircle 12 Secant 13 Minor Arc An angle formed by two radii with the vertex at the center of the circle. A part of a circle named by its endpoints. An arc that is larger than a semicircle. The set of all points in a plane that are a given distance, the radius, from a given point, the center. An angle whose vertex is on the circle and the sides of the angle are chords of the circle. Any segment with one endpoint on the circle and the other endpoint at the center of the circle. Half a circle. A unique point at which a tangent line meets the circle A line, ray, or segment that intersects a circle at two points. A segment whose endpoints are on the circle. A segment that contains the center of the circle and whose endpoints are on the circle. A line in the plane of the circle that intersects the circle in exactly one point. An arc that is smaller than a semicircle.
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