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