Parallel Lines Cut by a Transversal

Name the alternate interior angle to angle 3.

• 4

• 5

• 6

• 8

Solve for y.

• y = 20

• y = 120

• y = 60

• y = 10

Find y.

• 50

• 130

Select the figure that makes lines r and t parallel.

• 
• 
• 
• 

Angles on the same side of a transversal, in corresponding positions, and are congruent are called _____.

• Vertical angles

• Corresponding Angles

• Supplementary Angles

• Alternate Interior Angles

Solve for x.

• 8

• 11

• 5

• -5

Solve for x.

• 7

• -4

• 8

• 9

What is the Alternate Interior Angle Theorem?

• If two parallel lines are cut by a transversal, then the resulting alternate interior angles are congruent .

• If two angles are congruent, they are on parallel lines.

• If two parallel lines are cut by a transversal, then the angles are all congruent

• If two alternate interior angles are congruent, the lines are parallel.

Name the angle relationship.

• Alternate Interior

• Alternate Exterior

• Corresponding

• Vertical Angles

Name the angle relationship.

• Alternate Interior

• Alternate Exterior

• Corresponding

• Vertical Angles