Class 13

Monday, February 9

Today’s Discussion Topics

Go over discussion topic from last time

Today’s New Topics

Geometry without a Parallel Postulate: Neutral Geometry
The Exterior Angle Theorem (4.1.2)

Tonight’s Homework

Read Section 4.1
Do Exercise 4.1 #1. Bonus: # 2
Discussion Topic for next class: What are triangle congruence theorems?