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