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circle vocabulaary
study cards
Term | Definition |
---|---|
chord | a segment whose endpoints lie on a circle |
diameter | a chord that contains the center of a circle |
secant of a circle | a line tat contains a chord |
tangent to a circle | a line that lies on the plane of a circle and that intersects the circle at exactly one point (point of tangency) |
circle | the set of points in a plane at a given distance at a given point int he plane |
radius | a segment from a point on a circle or a sphere to the center |
congruent circle | circles with the same radius |
concentric circles | circles that lie on the same plane that share the same center |
inscribe angle | angle whose vertex lies on a circle and whose sides contain chords of the circle |
central angle | angle whose vertex is the center of a circle and whose sides contain radii of the circle |
circumference | distance around a circle that is perimeter of a circle |
arc length | a fraction of the circumference of a circle defined by the arc |
arc of a circle | 2 points on a circle and the continuos part of the circle between the 2 points |
semicircle | an arc of a circle whose endpoints are the length of a diameter |
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 length is grater than the length of a semicircle of the circle |