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Intersecting lines:

When two lines cross each other and share a common point is known as the Intersecting line. The above figure shows intersecting lines $$AB$$ and $$CD$$. Where two-line $$AB$$ and $$CD$$ intersect at a common point ‘$$O$$’.
Example:
We can see that the pair of metal blades in the scissor intersecting at a common point. There are many other day-to-day examples of this concept. Parallel lines:

When two lines are in the same plane and will never intersect each other are known as Parallel lines. The above figure shows parallel lines $$AB$$ and $$CD$$. Where two lines $$AB$$ and $$CD$$ are in the same plane but will never intersect each other and hence are termed as parallel lines.
Example:
We can see that the garage shelf is parallel to each other. There are many other day-to-day examples of this idea. Concurrent lines:

set of lines is said to be concurrent lines if they all intersect at the same point. The above figure shows the concurrent lines $$AB$$, $$CD$$, $$PQ$$ and $$RS$$ because they all intersect at a single point $$O$$. Thus, the concurrency of a point is $$O$$.
Example:
We can see that the orange pulps insect each other at a point $$P$$. There are many other day-to-day examples of this idea. 