Lesson 1 : Central angle and measuring arcs
Lesson 2 : The relation between the inscribed and central angles subtended by the same arc
Lesson 3 : Inscribed angles subtended by the same arcs
Lesson 4 : The cyclic quadrilateral
Lesson 5 : Converse of the cyclic quadrilateral
Lesson 6 : The relation between the tangents of a circle
Lesson 7 : Angles of tangency
Lesson 8 : The converse Angles of tangency