3.3: Proving Lines Parallel

Objectives:

• Use transversals in proving lines parallel.

Example 1

Student example 1

Example 2

Student example 2

Problem set 3.3

#1-13

3.2: Parallel Lines

Objectives:

• Define Transversal.
• Prove and apply theorems about parallel lines.

Example 1


Student Example 1


Example 2


Student Example 2


Problem Set 3.2:
#1-16

3.1: Proving Angles Congruent

Objectives:

• Use formal methods of proof to show angles congruent.

Example 1 and Student Example 1

*UPDATE: the answer is incorrect. It should be x = 20

Example 2

Student Example 2

Example 3 and Student Example 3

Problem set 3.1

#1-13 all

2.7: Composition of Reflections

Objectives:

• Transform figures by applying a composition of reflections.

Example 1


Example 2


Student Example 1


Problem set 2.7 (in class)
# 1-8, 14-17