👉 In geometry, an isogonal line or isogonal conjugate of a line L in a plane is a line that is perpendicular to L and passes through its center. In other words, it is a line that bisects the angle formed by two lines. Isogons are geometric configurations where all sides and angles are equal. They can be defined in various ways such as using circles or straight lines. Isogonal conjugates are lines that pass through their centers and are perpendicular to each other.