Parallel and Perpendicular Proofs

• none

Which Theorem?

• Corresponding Angles Theorem

• Alternate Interior Angles Theoren

• Alternate Exterior Angles Theorem

• Consecutive Interior Angles Theorem

• Linear Pair Perpendicular Theorem

• Perprendicular Transversal Theorem

• Lines Perpendicular to a Transversal Theorem

• You cannot prove.

• You can with Corresponding Angles Converse

• You can with Alternate Interior Angles Converse

• You can with Alternate Exterior Angles Converse

• You can with Consecutive Interior Angles Converse

Slopes of perpendicular lines are...

• opposite reciprocals.

• opposites.

• identical.

• always 7.

If the labeled angles are congruent, what proves that line a is parallel to line b?

• Alternate Interior Angles Converse

• Corresponding Angles Converse

• Alternate Exterior Angles Converse

• Same-Side Interior Angles Converse

What is the value of x that makes the lines parallel?

• 45

• 20

• 135

• 2

What slope is perpendicular to:  
m = 5/8

• -5/8

• 5/8

• -8/5

• 8/5

• Corresponding Angles Theorem

• Corresponding Angles Converse

• Alternate Interior Angles Theorem

• Alternate Interior Angles Converse

• Linear Pair Perpendicular Theorem

• Perprendicular Transversal Theorem

• Lines Perpendicular to a Transversal Theorem