👉 Perpendicularity is a mathematical concept in geometry that refers to two lines that meet at right angles. It means that they are parallel but not intersecting each other, and their slopes are opposite reciprocals of one another. In simpler terms, if you have two lines, any point on one line will be the same distance from both lines than a point on the other line. This property is often used to define perpendicular lines because it shows that they form a right angle when they meet at a