Prove Parallel Lines

Which could be used to prove the lines are parallel?

• Vertical

• Alternate Interior

• Corresponding

• Cannot be proved parallel

What value of x would make line m || line n?

• 54

• 126

Solve for y.

• y = 55

• y = 35

• y = 70

• y = 70

Find the Value of x that will make the line PT and line CW parallel.

• 9

• 2

• 12

• 8

Solve for  y.

• y = 20

• y = 120

• y = 60

• y = 10

Given the angle measure in the diagram, which two lines MUST be parallel?

• P and Q

• R and S

• R and T

• S and T

• Yes, vertical angles are congruent

• No, vertical angles are not enough to prove lines parallel

• Yes, corresponding angles are congruent

• Yes, alternate interior angles are congruent

What reason is missing from this proof?

• Reflexive Property of Congruence

• Transitive Property of Equality

• Transitive Property of Congruence

Which value of x will show that lines l and m are parallel?

• 20

• 22

• 24

• 25

Which value of x will show that line m is parallel to line r?

• 33

• 25

• 24

• 20