Chapter 9. Circles
Are we done with straights - lines, segments, trilaterals, quadrilaterals, etc.? Are we now on to curves?
Well yes. But actually no.
We will prove a set of results about circles. But every one of them will draw upon what we already know about the straight of straights, the triangle. What is new is old, and what is old is new again.
9.1 Arcs, Chords and Central Angles
Pt 1 Lecture, Pt 2 Lecture, Pt 1 PowerPoint, Pt 2 PowerPoint, Worksheet
9.2 Arc and Chord Proofs
Lecture, PowerPoint, Worksheet
9.3 The Inscribed Angle Theorem
Lecture, PowerPoint, Worksheet
9.4 Inscribed Polygons
Lecture, PowerPoint, Worksheet
9.5 The Tangent Existence Theorem and its Converse
Lecture, PowerPoint, Worksheet
9.6 TET Corollaries
Lecture, PowerPoint, Worksheet
9.7 The Secant-Tangent Angle Theorems
Lecture, PowerPoint, Worksheet
9.8 The Special Segment Theorems
Lecture, PowerPoint, Worksheet