What is the difference between parallel and perpendicular lines?

Hint: We are given a question to write the difference in property of two different types of lines possible, namely parallel lines and perpendicular. Both these types of lines are entirely different from each other. Parallel lines are the set of lines that never intersect or meet, even if the lines are extended indefinitely. Perpendicular lines can be said to be the relation between two lines that intersect each other at right angles, in other words perpendicular lines form an angle of \[{{90}^{\circ }}\] at the point of intersection.

Complete step-by-step solution:
According to the given question, we are given a question asking us to write the difference between the two types of lines, namely parallel and perpendicular lines.
Both the given types of lines are totally different from each other.
Parallel lines can be defined as the lines that never intersect at all. Even if we extend it indefinitely it will never meet or intersect. For example – the railway tracks.
(Parallel Lines)

Perpendicular lines refers to the relationship between two lines that intersect at an angle of \[{{90}^{\circ }}\], in other words perpendicular lines form an angle of \[{{90}^{\circ }}\] at the point of intersection. The perpendicular lines look like,


Note: The parallel lines and the perpendicular lines should not be confused with each other and should be carefully written or else the entire answer will go wrong. There are other types of lines along with the two given in the question like curved, radial, etc.