Geometry Notes 3.2-3.3
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Postulates and Theorems about Parallel Lines and Transversals; Proving Lines Parallel.
Corresponding Angles Postulate:
Converse:
Alternate Interior Angles Theorem:
Converse:
Same-Side Interior Angles Theorem:
Converse:
Alternate Exterior Angles Theorem:
Converse:
Which lines or segments must be parallel, based on given information? Justify your answer.
1.
2.
3.
4.
5.
6.
Determine the value of x for which r ║ s. Then find measure of each labeled angle.
7.
10.
8.
11.
9.
12.