Understanding Parallel Lines and Angles

Which of the following symbols is used to denote that two lines are parallel?

If two lines are cut by a transversal and the corresponding angles are equal, what can be concluded about the two lines?

• They are perpendicular.

• They are parallel.

• They are congruent.

• They are skew.

Which of the following is a property of parallel lines?

• They intersect at one point.

• They never intersect.

• They form a right angle.

• They are always vertical.

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

• They are supplementary.

• They are complementary.

• They are equal.

• They are adjacent.

Which angle pair is formed on the same side of the transversal and inside the parallel lines?

• Corresponding angles

• Alternate interior angles

• Same-side interior angles

• Vertical angles

Which of the following statements is true about the sum of the interior angles on the same side of a transversal intersecting two parallel lines?

What is the term for a line that intersects two or more lines at different points?

• Parallel line

• Transversal

• Perpendicular line

• Skew line

If two lines are parallel, what is the relationship between their slopes?

• The slopes are equal.

• The slopes are negative reciprocals.

• The slopes are zero.

• The slopes are undefined.

Which of the following is NOT a type of angle pair formed when a transversal cuts two parallel lines?

• Corresponding angles

• Alternate exterior angles

• Vertical angles

• Same-side exterior angles