## What is Pendicular line?

Perpendicular lines are lines that intersect at a right (90 degrees) angle.

What are two non-perpendicular intersecting lines called?

Non-Perpendicular Intersecting Lines When two lines intersect, they create vertical angles, sometimes called opposite angles, that are congruent.

### What is perpendicular lines example?

Lines that intersect each other forming a right angle are called perpendicular lines. Example: the steps of a straight ladder; the opposite sides of a rectangle. The symbol used to denote two perpendicular lines: ⊥ ⊥ .

How do you know if a line is not perpendicular?

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. Their product is -1!

#### What does ⊥ mean in math?

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

What are coinciding lines?

Two lines that lie on top of one another are called coincident lines.

## What are intersecting and perpendicular lines?

Two or more lines that meet at a point are called intersecting lines. That point would be on each of these lines. In Figure 1, lines l and m intersect at Q. Two lines that intersect and form right angles are called perpendicular lines.

Which shapes are perpendicular?

As listed before, the most common shapes with perpendicular sides are squares and rectangles. Another common shape with perpendicular sides is the right triangle. It is called a right triangle because it has a right angle for one of its three angles, this is where the perpendicular sides meet.

### How do you tell if a line is neither parallel or perpendicular?

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.

How do you prove a line is perpendicular?

If the two lines intersect at a point, the vertical angles formed are congruent. The intersecting lines either form a pair of acute angles and a pair of obtuse angles, or the intersecting lines form four right angles. When the lines meet to form four right angles, the lines are perpendicular.