Parallel Lines, Perpendicular Lines

What value of x proves that line p is parallel to line r?

• 14

• 12.5

• 15

• 25

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

• 20

• 22

• 24

• 25

• 90
• 60
• 45
• 30

g⊥e and g⊥f, determine if there is enough information to show lines ∠7≅∠11

• yes, both 90^o

• not enough information

Which could be used to prove the lines are parallel?

• Alternate Interior

• Corresponding

• Vertical

• Cannot be proved parallel

Which could be used to prove the lines are parallel?

• Corresponding

• Alternate Interior

• Linear Pair

• Cannot be proved parallel

Which could be used to prove the lines are parallel?

• Alternate Exterior

• Corresponding

• Alternate Interior

• Cannot be proved parallel

If a // b and c // d in the figure below, then what is the value of x?

• 47

• 57

• 133

• 143

Name the angle relationship.

• Alternate Interior

• Alternate Exterior

• Corresponding

• Vertical Angles