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Circle Vocabulary

Across
A way to measure angles and arcs that is based on arc length. The ratio of arc length to the radius of a circle.
A portion of a circle defined by two endpoints
________ arc-The longest arc connecting two endpoints on a circle
_________ arcs-Arcs in a circle that have exactly one point in common
An angle or shape that is inside a circle and has all vertices on the circle is said to be __________
________ tangent-A line, ray, or segment that is tangent to two circles in the same plane
The place where a tangent intersects a circle (3 words)
The distance between endpoints of an arc measured in linear units (2 words)
A circle that is around a polygon and has all vertices of the polygon on the circle is said to be __________
_________ angle-An angle with a vertex in the center of a circle
An arc with endpoints on the diameter & measures 180 degrees
Down
_________ arc-The shortest arc connecting two endpoints on a circle
The ratio of circumference to diameter
A chord that passes through the center of a circle
_______ arcs-Arcs in the same circle/congruent circles that have the same measure
A segment with endpoints at the center and on the circle
________ circles-Coplanar circles that have the same center
_________ arcs-An arc that has endpoints on the sides of an inscribed angle and lies in the interior of the inscribed angle
The distance around a circle
A line that intersects a circle at exactly two points
A segment with endpoints on the circle
When something has been divided into two congruent parts it has been ___________
A locus or set of points in a plane equidistance from a given point
A line in the same plane as a circle that intersects the circle at exactly one point