Given: $r\parallel s$   

Find the value of x.

• x = 18

• x = 90

• x = 6

• x = 36

Given: $r\parallel s$  

True or False:  $m\angle3=m\angle6$ 

• True, parallel lines make alternate interior angles congruent.

• False, parallel lines make alternate interior angles supplementary.

Is enough information given to conclude that  $c\parallel d$  ?

• Yes, vertical angles are congruent, which make the lines parallel.

• No, vertical angles do not prove the lines are parallel.

Is enough information given to conclude  $c\parallel d$  ?

• Yes, alternate exterior angles are congruent, which make the lines parallel.

• No, alternate exterior angles should be supplementary for the lines to be parallel.

When two coplanar lines are parallel and a transversal intersects each line,

_________ angles are congruent.

• Same-Side Interior

• Same-Side Exterior

• Corresponding

• None of the These

Given:  $k\parallel m$  

If  $m\angle5=82\degree$ , then  $m\angle4=$  _________.

•  $82\degree$  

•  $98\degree$  

•  $92\degree$  

•  $100\degree$  

Given:  $r\parallel s$  
True or False:  $m\angle1+m\angle7=180$  

• True

• False

Given:  $k\parallel m$  and $m\angle2=120\degree$  

Name the other angles which measure  $120\degree$  .

•  $\angle4,\ \angle6,\ \angle8$  
  

•  $\angle1,\ \angle5,\ \angle6$  

•  $\angle3,\ \angle6,\ \angle7$  

What is the value of x to make  $a\parallel b$  ?

• x = 148

• x = 53

• x = 46

• x = 27

Which lines are parallel?

• $a\parallel b$

• $e\parallel f$