Solving Proofs with Lines and Angles

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

• Alternate Interior Angles

• Alternate Exterior Angles

• Same-side Interior Angles

• Corresponding Angles

• None of these

This is what kind of angle?

• obtuse

• right

• straight

• acute

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

Given: k // p. Which of the following in NOT a valid proof that m∠1 + m∠6 = 180°?

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Which statement represents what you have to prove from the question?

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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

• Interiors on Same Side Converse

• None of the above can be used

• Transitive Property of Equality

• Substitution

• Reflexive Property of Equality

• Transitive Property of Congruence

Line l and m are cut by transversal n.  Which statement proves that line l is parallel to line m?

• ∠2 ≅ ∠3

• ∠2 ≅ ∠6 

• m∠7 + m∠8 = 180°

• m∠3 + m∠5 = 90°

Which could be used to prove the lines are parallel?

• Alternate Interior

• Consecutive Interior

• Corresponding

• Cannot be proved parallel