Symmetry

It refers to a situation where a shape or object has a one-to-one correspondence in size, shape, and arrangement relative to a point, line, or plane. Simply put, it's the regular repetition of similar parts of an object. This concept isn't just used in math and geometry; it's also widely found in physics, philosophy, and art and design. For example, the wings of a butterfly or the structure of a human face are typical examples of symmetrical forms.