Proving lines Parallel

Name the angle relationship.

• Alternate Interior
• Alternate Exterior
• Corresponding
• Vertical Angles

Name the angle relationship.

• Alternate Interior
• Alternate Exterior
•  Correpsonding
• Vertical Angles

Name the angle relationship.

• Consecutive Interior
• Alternate Interior
• Corresponding
• Vertical Angles

What type of angle pair is ∠1 and ∠3?

• alternate interior angles
•  supplementary angles
• corresponding angles
• vertical angles 

Lines r and s are cut by a transversal. What value of x proves r ∥ s?

• 43
• 37
• 143
• 37

Solve for  y.

• y = 20
• y = 120
• y = 60
• y = 10

Which could be used to prove the lines are parallel?

• Converse of Alternate Interior Angles Theorem

• Converse of Same-Side Interior Angles Theorem

• Converse of Corresponding Angles Postulate

• Cannot be proved parallel

Which could be used to prove the lines are parallel?

• Converse of Vertical Angles

• Converse of Alternate Interior Angles Theorem

• Converse of Corresponding Angles Postulate

• Cannot be proved parallel

• No

• Yes, Corresponding angles are congruent

• Yes, Alternate Interior angles are congruent

• Yes, Alternate Exterior angles are congruent

Which could be used to prove the lines are parallel?

• Converse of Corresponding Angles Postulate

• Converse of Alternate Interior Angles Theorem

• Converse of Linear Pair

• Cannot be proved parallel