Geometry - Parallel Lines

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
| By Kozloren
K
Kozloren
Community Contributor
Quizzes Created: 1 | Total Attempts: 251
Questions: 5 | Attempts: 251

Settings

Review quiz on parallel lines.

• 1.

What is the relationship of slopes between parallel lines?

• A.

Opposite

• B.

Opposite reciprocals

• C.

Reciprocal

• D.

Equal

D. Equal
Explanation
The relationship of slopes between parallel lines is that they are equal. This means that if two lines are parallel, their slopes will have the same value.

Rate this question:

• 2.

What is the relationship of the slopes on perpendicular lines?

• A.

Opposite

• B.

Opposite reciprocals

• C.

Reciprocals

• D.

Equal

B. Opposite reciprocals
Explanation
Perpendicular lines have slopes that are opposite reciprocals of each other. This means that if one line has a slope of m, the perpendicular line will have a slope of -1/m.

Rate this question:

• 3.

Which of the following angle pairs are congruent because parallel lines are cut by a transversal?

• A.

Corresponding

• B.

Alternate interior

• C.

Alternate exterior

A. Corresponding
B. Alternate interior
C. Alternate exterior
Explanation
When parallel lines are cut by a transversal, corresponding angles, alternate interior angles, and alternate exterior angles are congruent. Corresponding angles are formed when a transversal intersects two parallel lines and are located in the same relative position on each line. Alternate interior angles are located on opposite sides of the transversal and inside the two parallel lines. Alternate exterior angles are located on opposite sides of the transversal and outside the two parallel lines. Therefore, all three angle pairs mentioned in the answer (corresponding, alternate interior, and alternate exterior) are congruent when parallel lines are cut by a transversal.

Rate this question:

• 4.

Which of the following is always congruent even if lines are not parallel?

• A.

Consecutive interior angles

• B.

Vertical angles

• C.

Alternate exterior angles

• D.

Corresponding angles

B. Vertical angles
Explanation
Vertical angles are always congruent, regardless of whether the lines are parallel or not. Vertical angles are formed by two intersecting lines and are opposite to each other. They have equal measures and are congruent because they are formed by the same pair of intersecting lines. This property holds true for any pair of vertical angles, regardless of the orientation of the lines.

Rate this question:

• 5.

Which of the following are methods to prove two lines are parallel when cut by a transversal?

• A.

Alternate exterior angles are congruent.

• B.

Consecutive interior angles are congruent.

• C.

Corresponding angles are supplementary.

• D.

Alternate interior angles are congruent.

D. Alternate interior angles are congruent.
Explanation
The method to prove two lines are parallel when cut by a transversal is by showing that the alternate interior angles are congruent. This means that the angles on the inside of the two lines, but on opposite sides of the transversal, are equal in measure. If the alternate interior angles are congruent, it indicates that the lines are parallel.

Rate this question:

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Nov 07, 2011
Quiz Created by
Kozloren

Related Topics