👉 In mathematics, "lengthways" is a mathematical concept used to represent the relationship between two lines that intersect at right angles. The intersection of two lines is defined as a point where they meet and form a line segment. These lines are often referred to as "lines of symmetry." In geometry, this concept also plays a significant role in understanding the properties of triangles, such as their sides and angles, by considering how the lengths of these sides relate to each other.