Two distinctive lines intersecting each various other at 90° or a ideal angle are referred to as perpendicular lines.

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**Example**:

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

**Non-Example:**

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

**Properties the perpendicular lines**

These lines always intersect at right angles.

If 2 lines room perpendicular come the same line, they space parallel to every other and also will never ever intersect.

Adjacent sides of a square and a rectangle are constantly perpendicular to each other.

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

**Real life examples**

We deserve to observe many perpendicular lines in actual life. Some instances are edge of two walls and the Red overcome symbol.

The native ‘perpendicular’ has actually its origin from the late center English i m sorry exactly means “at ideal angles”, indigenous Latin ‘perpendicularis’, ‘perpendiculum’ definition “plumb line” and from ‘perpendere’ where ‘per’ means “through” and ‘pendere’ method “to hang”. The perpendicular currently are constantly intersecting lines yet intersecting lines space not always perpendicular to every other. |