Composing and Decomposing Shapes Vocab

A (a)   is a line segment from the center of a circle to a point on the circle.

A (a)   of a circle is a line segment passing through the center of the circle with endpoints on the circle.

A (a)   is an angle with its vertex at the center of a circle, like $$\angle$$ AQC. An arc is a part of a circle, like ⏜AC. The measure of ⏜AC is the measure of the central angle formed by the endpoints.

Two points on a circle determine a ​ (a)   and a ​ (b)   . The arc with the greater measure, ⏜ACB, is the ​ (c)   . The other arc, ⏜AB, is the ​ (d)   .​

A ________ of a circle is a line that intersects the circle at two points. In this circle, $$\overleftarrow{C}\overrightarrow{D}$$ is a ________.

(a)  

A _______ is a segment whose endpoints are points on a circle. In this circle, $$\overline{CD}$$ is a ______.

(a)  

A (a)   of angles are two adjacent angles that have noncommon sides that are opposite rays.

The angles of a linear pair have measures whose sum is (a)   °.

An (a)   is an angle whose vertex is on a circle and whose sides contain chords of the circle.

An (a)   is a part of a circle that lies in the interior of an angle with endpoints that are the intersection of the sides of the angle and the circle.