<p>Chapter 9/10 Vocabulary</p><p>- Center of a circle</p><p>- Radius</p><p>- Chord</p><p>- Diameter</p><p>- Secant of a circle - Tangent of a circle</p><p>- Point of tangency</p><p>- Central angle</p><p>- Inscribed angle</p><p>- Arc</p><p>- Major arc - Minor arc</p><p>- Semicircle</p><p>- Degree measure of an arc</p><p>- Adjacent arc</p><p>- Arc addition postulate</p><p>- Intercepted arc - Inscribed angle theorem</p><p>- Parallel lines-congruent arc theorem</p><p>- Interior angles of a circle theorem</p><p>- Exterior angles of a circle theorem</p><p>- Tangent to a circle</p><p>- Diameter chord theorem - Equidistant chord theorem</p><p>- Equidistant chord converse theorem</p><p>- Congruent chord-congruent arc theorem</p><p>- Congruent chord-congruent arc converse theorem</p><p>- Segments of a chord</p><p>- Segment-chord theorem - Tangent segment</p><p>- Tangent segment theorem</p><p>- Secant segment</p><p>- External secant segment</p><p>- Secant segment theorem</p><p>- Secant tangent theorem - Inscribed polygon</p><p>- Inscribed right triangle-diameter theorem</p><p>- Inscribed right triangle-diameter converse theorem</p><p>- Circumscribed polygon</p><p>- Inscribed quadrilateral-opposite angles theorem</p><p>- Arc length - Radian</p><p>- Concentric circles</p><p>- Sector of a circle</p><p>- Segment of a circle</p>