Parallel Lines Converse

What is the reason these two lines are parallel?

• Corresponding Angles Converse

• Alt. Int. Angles Converse

• Alt. Ext. Angles Converse

• Vertical Angles Theorem

• Consecutive Int. Angles Converse

Why are these two lines parallel?

• Vertical Angles Theorem

• Corresponding Angles Converse

• Alt. Int. Angles Converse

• Alt. Ext. Angles Converse

• Not Enough Information to Prove Parallel

Which could be used to prove the lines are parallel?

• Corresponding

• Alternate Interior

• Linear Pair

• Cannot be proved parallel

Solve for  y.

• y = 20

• y = 120

• y = 60

• y = 10

Solve for y.

• y = 55

• y = 35

• y = 70

• y = 70

Select the figure that makes lines r and t parallel.

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If angles 6 and 8 are congruent, then which two lines must be parallel? What would be the reason?

• lines m and n

  alternate interior angles converse

• lines m and n

  alternate exterior angles converse

• lines n and p

  alternate interior angles converse

• lines m and p

  alternate exterior angles converse

If angles 7 and 2 are supplementary, then which two lines must be parallel? What would be the reason?

• lines m and n

  consecutive interior angles converse

• lines m and n

  corresponding angles converse

• lines n and p

  consecutive interior angles converse

• lines m and p

  corresponding angles converse

If angles 4 and 6 are congruent, then which two lines must be parallel? What would be the reason?

• lines m and n

  alternate exterior angles converse

• lines m and n

  corresponding angles converse

• lines n and p

  alternate exterior angles converse

• lines m and p

  corresponding angles converse

If angles 6 and 7 are congruent, then which two lines must be parallel? What would be the reason?

• lines m and n

  alternate interior angles converse

• lines m and n

  alternate exterior angles converse

• lines m and p

  alternate exterior angles converse

• lines m and p

  alternate interior angles converse