Common Core Math Vocabulary

Perpendicular Lines - Definition with Examples

What are Perpendicular Lines?

Perpendicular Lines Definition: Perpendicular lines are lines that intersect at a right angle. For example, the lines AB and CD are perpendicular lines.

Perpendicular lines


Real Life Examples of Perpendicular Lines

Perpendicular lines can be observed in many objects of daily use. 

Real life example of perpendicular


Facts Related to Perpendicular Lines


Adjacent sides of square rectangle and right triangle


  • The diagonals of a square, kite, and rhombus are perpendicular to each other.


Diagonals of a square kite and rhombus



Perpendicular number lines

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