Two distinctive lines intersecting each various other at 90° or a best angle are called perpendicular lines.

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**Example**:

Here, abdominal is perpendicular come XY because ab and XY intersect each various other at 90°.

**Non-Example:**

The two lines room parallel and also do not intersect every other. They deserve to never it is in perpendicular to each other. | The two lines room intersecting each other at one acute angle. So, they room not perpendicular. | The lines are not intersecting each various other at best angles. |

**Properties that perpendicular lines**

These lines always intersect at appropriate angles.

If 2 lines are perpendicular come the very same line, they room parallel to each other and will never ever intersect.

Adjacent political parties of a square and also a rectangle are always perpendicular to each other.

Sides that the right-angled triangle enclosing the appropriate angle space perpendicular to every other.

**Real life examples**

We have the right to observe plenty of perpendicular currently in actual life. Some examples are corner of 2 walls and the Red cross symbol.

The native ‘perpendicular’ has actually its beginning from the late center English which exactly method “at right angles”, indigenous Latin ‘perpendicularis’, ‘perpendiculum’ meaning “plumb line” and from ‘perpendere’ wherein ‘per’ way “through” and ‘pendere’ method “to hang”. The perpendicular lines are always intersecting lines yet intersecting lines are not constantly perpendicular to every other. |