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circle vocabulary
Term | Definition |
---|---|
chord | a statement whose endpoints lie on a circle |
Diameter | a chord that contains the center of the circle |
Secant of a circle | a circle that contains a chord |
tangent to a circle | a line that lies in the plane of a circle and that lies in the plane of a circle and that intersects the circle at exactly one point |
circle | the set of all points in a plane at a given distance from a given point in the center |
radius | a segment from a point on a circle or a sphere to the center |
congruent circles | with the same radius |
concentric circles | circle that lie on the same plane that share the same center |
inscribed angle | angle whose vertex lies on a circle and whose |
central angle | angle whose vertex is the center of s circle and whose sides contain radii of the circle |
circumference | distance around a circle that is the perimeter of a circle |
arc length | a fraction of the circumference of a circle defined by the arc |
arc of a circle | two points on a circle and the continuous part of the circle between the two points |