We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel. If the slopes are different, the lines are not parallel. Unlike parallel lines, perpendicular lines do intersect.

A regular pentagon has no parallel or perpendicular sides, but a non-regular pentagon might have parallel and perpendicular sides.

tolgart / Getty Images. Characteristics of Lines that are Neither Parallel nor Perpendicular. Slopes are not the same. The lines intersect. Although the lines intersect, they do not form 90° angles.

The lines are parallel. The slopes of the lines are the same and they have different -intercepts, so they are not the same line and they are parallel. Two non-vertical lines are perpendicular if the slope of one is the negative reciprocal of the slope of the other.

Parallel lines do not meet at a point. This section of Wikipedia worth a lot here: In geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel.

In geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel.

Parallel lines never intersect, and perpendicular lines intersect at a 90 degree angle.

Perpendicular lines are two or more lines that intersect at a 90-degree angle, like the two lines drawn on this graph. These 90-degree angles are also known as right angles. When the lines are parallel or perpendicular, text will appear to let you know you’ve done it! o Look at the slopes of the two parallel lines.

Yes, for two lines to be perpendicular to each other, they must always intersect each other at 90 degrees. If they intersect each other at greater than or less than 90 degrees the lines aren’t termed perpendicular.

Perpendicular lines are lines, segments or rays that intersect to form right angles. The symbol ⊥ means is perpendicular to . The right angle symbol in the figure indicates that the lines are perpendicular.

The perpendicular bisector of a side of a triangle is a line perpendicular to the side and passing through its midpoint. The three perpendicular bisectors of the sides of a triangle meet in a single point, called the circumcenter . A point where three or more lines intersect is called a point of concurrency.

A line segment that is drawn from the vertex to the base such that it forms a 90 degree angle is called the perpendicular height of a triangle. In other words , it is the shortest distance between the vertex and base.

A triangle is a geometric shape that always has three sides and three angles. Triangles have zero pairs of parallel lines. They usually have zero pairs of perpendicular lines. Only one type of triangle, the right triangle, does have two perpendicular lines.

Note: Perpendicular lines intersect at right angles to one another. To figure out if two equations are perpendicular, take a look at their slopes. The slopes of perpendicular lines are opposite reciprocals of each other.

If two lines are perpendicular, they form four right angles. When two lines are perpendicular, there are four angles formed at the point of intersection. It makes no difference “where” you label the “box”, since all of the angles are right angles.

The slopes of two perpendicular lines are negative reciprocals of each other. This means that if a line is perpendicular to a line that has slope m, then the slope of the line is -1 / m.