What is defined as the correspondence in size and shape on opposite sides of a central axis?

The concept defined as the correspondence in size and shape on opposite sides of a central axis is symmetry. In various fields of design, symmetry is a fundamental principle, as it provides balance and harmony in a composition. When an object, structure, or design exhibits symmetry, one half mirrors the other, which can create a sense of stability and beauty. This principle is widely employed in architecture, art, and even nature, where symmetrical patterns are often perceived as aesthetically pleasing.

On the other hand, proportionality refers to the relationship and ratio of different parts of a whole, while asymmetry involves a lack of balance or correspondence between sides, which can create dynamic tension in a design, but does not embody the idea of equal correspondence as symmetry does. Contrast highlights differences between elements, enhancing visual interest but not relating to corresponding shapes or sizes. Thus, symmetry is the accurate term for describing this specific relationship around a central axis.