9.1 Parts of a Circle

9.2 Tangent Lines and Central Angle Measures

9.3 Chords and Their Properties

9.4 Inscribed Angles and Their Arc Measures

9.5 Angles of Chords, Secants, and Tangents

9.6 Segments of Chords, Secants, and Tangents

9.7 Writing and Graphing the Equations of Circles