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