# Perpendicular Lines - Definition with Examples

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## Perpendicular Lines Games

Parallel and Perpendicular Lines

Parallel lines are lines that never meet and perpendicular lines meet at right angles. Recognize pairs of parallel or perpendicular lines.

Covers Common Core Curriculum 4.G.1

## What are perpendicular lines?

In geometry, a branch of mathematics, perpendicular lines are defined as two lines that meet or intersect each other at right angles (90°).

Perpendicular lines can be found everywhere around us, like at street intersections, in rectangular window panes.

 Fun Facts Perpendicular lines are always intersecting lines; however, intersecting lines are not always perpendicular.

## Let's sing!

Perpendicular lines intersect at right angles,
They stand tall, and never do they dangle.

## Let's do it!

Give your children opportunities to observe perpendicular lines in objects or places around them, such as a tall tree on the ground, an electric pole on the pavement, railway intersection, corner of two adjacent walls and high buildings.

## Related math vocabulary

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