Ch 3.1Standard 2.0: Students write geometric proofs.Standard 4.0: Students prove basic theoremsinvolving congruence.Standard 7.0:Students prove and use theorems involving theproperties of parallel lines cut by a transversal
Objective:
1)To identify angles formed by two lines and atransversal.
2)To prove and use properties of parallel lines.
Definitions
Example 1
Give an example of each angle pair.
A. corresponding angles
B. alternate interior angles
C. alternate exterior angles
1 and 3
D. same-side interior angles
2 and 7
1 and 8
2 and 3
Example 2
Identify the transversal and classify each angle pair.
A. 1 and 3
B. 2 and 6
C. 4 and 6
transversal l corr.s
transversal n
alt. int s
transversal m
alt. ext s
