Parallel lines Cut by a Transversal

If the measure of angle 4 is 76 degrees, what is the measure of angle y?

• 76 degrees

• 14 degrees

• 114 degrees

• 104 degrees

Outside the parallel lines; same side of the transversal; supplementary

• Alternate Exterior Angles

• Same Side Exterior Angles

• Corresponding Angles

• Same Side Interior Angles

Name the angle relationship.

• Consecutive Interior
• Alternate Interior
• Corresponding
• Vertical Angles

Name the angle relationship.

• Alternate Interior
• Alternate Exterior
• Corresponding
• Vertical Angles

Which pair of angles is an example of corresponding angles?

What is a transversal?

• A line that intersects two or more lines
• The angles opposite of each other when two lines cross
• Two angles whose sum measures 180 degrees
• Lines that intersect to form a 90 degree angle

What is the relationship of the Angles

• Alternate Interior
• Alternate Exterior
• Corresponding
• vertical 

Name the angle relationship.

• Alternate Exteriors
• Alternate Interiors
• Corresponding
• Same Side Interior

What type of angles are labeled in the picture?

• Same Side Exterior

• Corresponding

• Complementary

• Alternate Interior Angles

Given a // b with transversal t.

What is the measure of ∠ 5 if the measure of ∠ 7 is 70?

• 30

• 50

• 70

• 110

Answer explanation

∠ 5 and ∠ 7 are corresponding angles. And based on properties of parallel lines cut by a transversal line that corresponding angles are congruent. So, if ∠ 7 is 70 then ∠ 5 is also 70.