Download Geometry Notes – Lesson 3.2 Name _________________________________

Geometry
Notes – Lesson 3.2
Name _________________________________
What is the converse?
Conditional:
If 2 lines are parallel, then the corresponding angles are congruent.
Converse:
If the ____________________________________________ are ___________, then the two lines are _____________________.
Conditional:
If 2 lines are parallel, then the alternate interior angles are congruent.
Converse:
If the ____________________________________________ are ___________, then the two lines are _____________________.
Conditional:
If 2 lines are parallel, then the alternate exterior angles are congruent.
Converse:
If the ____________________________________________ are ___________, then the two lines are _____________________.
Conditional:
If two lines are parallel, the same-side interior angles add up to 1800.
Converse:
If the ___________________________________________ add up to ______, then the two lines are ______________________.
Summary:
If you are to prove that lines are parallel, you will the converse postulates or theorems of:
1. _____________________________
2. _________________________________
3. _____________________________
4. _________________________________
Why are these lines parallel?
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Are these lines parallel? If yes, state the postulate or theorem.
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2.
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Find x.
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