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circle vocabularymr
definitions
Term | Definition |
---|---|
chord | a segmentwhosed endpoints lie on a circle |
diameter | a chordthat contains the center of a circle |
secant of a circle | a line that containas a chord |
tangent | a line that lies in the plane of acircle and that intersect the cirlce at exactly one point |
circle | the set of all points in a plane at a given distance from a given point in the plane |
radius | a segrment from a point on a circle or a sphere to the center |
congruent circles | circles with the radius |
concertic circles | circles that lie in the same plane that share the same center |
inscribed angle | angle whose vertex lies on a cirle and whose sides contain chords of the circle |
central angle | angle whose vertex is the center of a circle and whose side contain radii of the |
circumference | distance around a circle that is the preimtere of a circle |
arc lenght | a fraction of the circumfrence of a circle difined by the arc |
semicircle | an arc of a circle whose endpoints are the endpoints of a diamtere |
minor arc | an arc of a circle whose length is less than the length of a semicircle of the circle |
major arc | an arc of a circle whose lenght is greater than the legth of a semicircle of the circle |