Geometric similarity refers to the property where two shapes are similar in form but differ in size. This means that corresponding angles are equal, and the lengths of corresponding sides are proportional. For example, if one triangle has sides that are twice as long as another triangle, they are geometrically similar. In practical applications, geometric similarity is important in fields like architecture and engineering. It allows for the scaling of designs while maintaining the same proportions, ensuring that models or prototypes accurately represent the intended final product. This concept is also crucial in mathematics and physics for analyzing shapes and structures.