GEOMETRY NOTES 4/14

inscribed angle- an inscribed angle is an angle made up of two chords. Since it is made up of chords. The vertex of the angle will be ON the circle.
There are three types of inscribed angles center interior, center exterior, Center included.
Intercepted Arc- the mino acr defined by the two endpoints of chords forming an inscribed angle that are not part of the vertex of the inscribed angle.
Inscribed angle therorem 10-5: The measure if n angle inscribed in a circle is equal to half the measure of an intercepted arc (or, the measure of an intercepted arc is twice the measure of the inscribed angle)
Theorem 10-6: Arc Inctercept Theroem: If two inscribed angles intercept congruent arcs of the same arc the angles are congruent.
Theorem 10-7: Right-Angle: If an inscribed angle intercepts a semicircle. then the angle is a right angle.