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7 Cards in this Set
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 Back
Central Angle

A ________ _______ made using two radii of the circle. It is an angle with its vertex on the center of the circle.


Chord

A _____ of a circle is a segment from one edge of the circle to the other edge anywhere on the circle. The Diameter of the circle is the distance across the circle at its widest point through the center of the circle. The diameter is a special ______ because it is the longest chord of the circle.


Circle

A is the set of points in a plane that are equidistant from one point. The center point of a _____ is used in naming it.


Major Arcs

______ _____ extend more than halfway around a circle.


Minor Arcs

_____ _____ extend less than half way around the circle.


Radius

The ______ of a circle is the distance from the center of the circle to the edge of the circle. No matter where inside the circle you measure the ______, it is always the same number.


semicircles

_________ extend exactly halfway around a circle.
_________ measure 180 degrees The endpoints of a _________ are the end points of the diameter of the circle. 