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