Parallel Line Vocabulary

Straight lines that will never intersect

• Vertical

• Supplementary

• Parallel Lines

• Transversal

Angles that are outside the parallel lines and on the same side of the transversal.

• Alternate Interior

• Alternate Exterior

• Consecutive Interior

• Consecutive Exterior

• Corresponding

Angles that are outside the parallel lines and on opposite sides of the transversal.

• Alternate Interior

• Alternate Exterior

• Consecutive Interior

• Consecutive Exterior

• Corresponding

Angles that are inside the parallel lines and on opposite sides of the transversal.

• Alternate Interior

• Alternate Exterior

• Consecutive Interior

• Consecutive Exterior

• Corresponding

Name a line parallel to AD

• EH

• AB

• DC

• HG

Angles that are inside the parallel lines and on the same side of the transversal.

• Alternate Interior

• Alternate Exterior

• Consecutive Interior

• Consecutive Exterior

• Corresponding

Angles that are in the same locations relative to the parallel lines and on the same side of the transversal.

• Alternate Interior

• Alternate Exterior

• Consecutive Interior

• Consecutive Exterior

• Corresponding

Alternate Interior

• are congruent (are equal)

• add up to 180 degrees

Alternate Exterior

• are congruent (are equal)

• add up to 180 degrees

What word describes line BE and CF?

• parallel

• perpendicular

• skew

• intersecting