Search IntMath
Close

450+ Math Lessons written by Math Professors and Teachers

5 Million+ Students Helped Each Year

1200+ Articles Written by Math Educators and Enthusiasts

Simplifying and Teaching Math for Over 23 Years

# everything you need to know about parallel lines

If you're taking a geometry class, chances are you'll come across the concept of parallel lines. But what exactly are parallel lines? In this blog post, we'll give you a brief overview of what parallel lines are and why they're important in geometry.

Parallel lines are two or more straight lines that are equal distance apart from each other at all points. You can think of them as train tracks - they're always the same distance apart no matter how far they extend.

In geometry, we use parallel lines all the time. One of the most basic things you'll learn is how to bisect angles using two perpendicular lines (which form a right angle). You can also use parallel lines to prove geometric theorems - for example, the Alternate Interior Angles Theorem states that if two parallel lines are intersected by a transversal (a third straight line that crosses both of the first two), then the opposite angles formed by the intersection are equal.

As you can see, parallel lines play an important role in geometry. Next time you're working on a geometry problem and you see two straight lines, stop and think for a moment - are those lines parallel? If so, that may be just what you need to solve the problem!

## FAQ

### What are the rules for parallel lines?

In geometry, parallel lines are lines in a plane that do not meet; that is, two lines in a plane that do not intersect or touch each other at any point. Parallel lines remain the same distance apart over their entire length.

### What are 2 facts about parallel lines?

1) Parallel lines never intersect.

2) Parallel lines are always the same distance apart.

### What are the three rules of parallel lines?

1) Parallel lines never intersect.

2) Parallel lines are always the same distance apart.

3) Corresponding angles of parallel lines are equal.

### What is the angle between two parallel lines?

The angle between two parallel lines is 0 degrees.

### What is the importance of parallel line?

There are many practical applications for parallel lines in the real world. For example, Parallel lines are used extensively in construction and engineering to ensure that buildings are stable and safe. They are also used in optical instruments, such as binoculars and microscopes, to produce a clear image. Parallel lines also have many applications in mathematics and geometry (obviously).