Unit 10: PARTS OF CIRCLES, Area and Circumference of Circles, Central Angles & Arc Measures, Arc Lengths, Congruent Chords and Arcs, Inscribed Angles, Tangents, Angles formed by Chords, Secants, and Tangents, Segment Lengths formed by Chords, Secants, and Tangents, Equations of Circles ( Standard Form, Graphing, Identifying Parts, Completing the Square, Writing Equations in Standard Form given center/radius, center/diameter, etc.)