Proving Lines Parallel Converses

• Def of Corr Angles
• Corr Angle Postulate
• Corr Angle Convese
• S-S Int Thm

When you are proving lines parallel, do you use the theorems or the converses? 

• theorems 

• converses

• Def of Alt Ext Angles
• Alt Ext Angle Thm
• Alt Ext Angle Convese
• Alt Int Angle Thm

Q1. What is the definition of supplementary angles?

• A) Def of S S IntAngles

• B) S S Int Angle Thm

• C) Linear Pair Postulate

• D) S S Int Angle Converse

This question is asking you to prove that lines m and n are...

• perpendicular

• skew

• congruent

• parallel

If ∠6 is supplementary to ∠7, which of the following can be used to prove lines are parallel?

• Corresponding Angles Converse

• Alternate Interior Angles Converse

• Alternate Exterior Angles Converse

• Consecutive or same side interior Converse

• None of the above can be used

If ∠5 ≅ ∠10, which of the following can be used to prove lines are parallel?

• Corresponding Angles Converse

• Alternate Interior Angles Converse

• Alternate Exterior Angles Converse

• Interiors on Same Side Converse

• None of the above can be used

Which reason explains why the two lines are parallel?

• Corresponding Angles Converse

• Alt. Interior Angles Converse

• Alt. Exterior Angles Converse

• Consecutive Int. Angles Converse

• Not Enough Information to Prove Parallel

If you know that angle 4 ≅ angle 6, how can you prove PQ||RS?

• Converse of corresponding angle theorem

• Converse of alternate interior angles theorem

• Converse of same side interior angles postulate

• Converse of alternate exterior angles theorem

See image for question.

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