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13 terms

chapter 10 vocab

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Circumscribed Circle
Circle that contains vertices of an inscribed polygon
Secant Segment
A segment that contains a chord of a circle, and has exactly one endpoint outside of that circle
Secant line
Line that intersects at circle at two points
Congruent arcs
Two arcs with the same measure and are arcs of the same circle or congruent circles
Radius
Segment with an endpoint at the center of the circle and at a point on the circle.
Tangent Line
A line that intersects a circle in exactly one point, the point of tangency
Chord
A segment with endpoints that are on the circle
Central Angle
the vertex of this angle is the center of the circle
Semicircle
An arc whose endpoints are the endpoints of a diameter of the circle
Diameter
The distance across a circle, through its center. a chord that goes through the center of the circle.
Intercepted Arc
The arc that lies in the interior of an inscribed angle and has endpoints on the angle
External Segment
The part of the secant segment that is outside the circle
Circle
The set of all points in a plane that are equidistant from a given point, the center.