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]()
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.
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Let's sing!
Perpendicular lines intersect at right angles,
They stand tall, and never do they dangle.
![let's do it]()
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]()
Related math vocabulary
Let's sing!
Let's do it!
Related math vocabulary
