Session 11
Quadrature of the Lune

Session 12
Three Great Problems of Antiquity

1.  Homework Set 3

Session 13
Euclidean Geometry: Introduction

2. Euclidean Postulates and Common Notions Handout

3.  Parallel Postulates Quotes Handout

Session 14
Euclidean Geometry

Session 15
Euclidean Geometry

Session 16
Non-Euclidean Geometry

Session 17
Non-Euclidean Geometry

Neutral Geometry Handout

Statements Equivalent to the Parallel Postulate

Comparison Table for Euclidean and non-Euclidean Geometry

4.  Homework Set 4

Session 18
Non-Euclidean Geometry, Conclusion

Session 19
Review

Session 20
Exam Number Two