Definitions++for+Section+9.3


 * Inscribed angle:** is an angle whose vertex lies on a circle and whose sides re chords of the circle.


 * Inscribed Angle Theorm:** Is the measure of an angle inscribed in a circle is equal to **half** the measure of the intercepted arc.


 * Right-Angle Corollary:** if an inscribed angle intercepts a semi circle, then the angle is a right angle.
 * Arc-Intercept Corollary:** If two inscribed angles intercept the same arc, then they have the same measure,