Intersecting Lines:
Two lines are said to be intersecting lines if they meet or cross each other at a common point.
This common point is called the point of intersection.
When two lines intersect, they form four angles at the point of intersection. These angles show interesting relationships:
Let us discuss what linear pair of angles are.
Definition:
Linear pair of angles should add up to \(180°\). In other words, the sum of the linear pair of angles is supplementary (\(180^{\circ}\)).
When two lines intersect at a particular point, the vertically opposite angles formed are equal in measure.
Perpendicular lines are a pair of lines which intersect each other at right angles (\(90°\)).
Parallel lines are a pair of lines that lie on the same plane, and do not meet however far we extend them at both ends.