9 2 Study Guide And Intervention Measuring Angles And Arcs

Question: central angle

Answer: an angle whose vertex is at the center of a circle and whose sides are radii

Question: A degree is _________ of the circular rotation around a point.

Answer: 1/360

Question: The sum of the measures of the central angles of a circle is ____________

Answer: 360 degrees

Question: arc

Answer: a portion of a circle defined by two endpoints

Question: The measure of the central angle is _________ to the arc measure.

Answer: equal

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