Properties of Parallel Lines and Transversals (Review)

What is a defining characteristic of parallel lines?

• They always intersect at a right angle.

• They are always the same distance apart and will never intersect.

• They form vertical angles when intersected.

• They always have a sum of 180 degrees.

Which statement best describes a transversal line?

• A line that forms a 90-degree angle with another line.

• A line that is always equidistant from another line.

• A line that intersects two or more other lines.

• A line that is opposite to another line.

What is true about vertical angles?

• They are always supplementary.

• They are formed by parallel lines and a transversal.

• They are opposite each other and are congruent.

• They always sum to 90 degrees.

When parallel lines are intersected by a transversal, what is true about corresponding angles?

• They are always supplementary.

• They are always congruent.

• They are formed on the inside of the parallel lines.

• They are always perpendicular.

In a diagram with two parallel lines intersected by a transversal, which pair of angles are corresponding angles?

• Angle 1 and Angle 5

• Angle 2 and Angle 4

• Angle 3 and Angle 8

• Angle 6 and Angle 7

When two parallel lines are cut by a transversal, which pair of angles are alternate exterior angles?

• Angle 1 and Angle 7

• Angle 2 and Angle 6

• Angle 3 and Angle 5

• Angle 4 and Angle 8

Given two parallel lines intersected by a transversal, which pair of angles are alternate interior angles?

• Angle 4 and Angle 6

• Angle 1 and Angle 8

• Angle 2 and Angle 7

• Angle 3 and Angle 4

If two parallel lines are intersected by a transversal, and one angle measures 121°, what is the measure of its supplementary angle?

• 121°

• 59°

• 68°

• 90°