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