When is division in a design creates two halves that are symmetrical what principle in graphic design is be used?

When division in a design creates two symmetrical halves, the principle of symmetry is being utilized. Symmetry in graphic design enhances balance and harmony, making a composition visually appealing and easy to navigate. This principle can evoke feelings of stability and order, often drawing the viewer's attention more effectively. Symmetrical designs are commonly used in logos, posters, and layouts to create a sense of professionalism and coherence.