What does the term 'similarity transformations' imply?

The term 'similarity transformations' refers to the processes that change the size of shapes while maintaining their overall proportions and angles. When shapes are subjected to similarity transformations, they can be enlarged or reduced without altering their fundamental characteristics, such as the shape and angle measures. This means that all corresponding angles remain the same and the lengths of corresponding sides are proportional.

Thus, the correct answer captures the essence of what occurs during these transformations: the ability to resize figures while preserving their shape properties. This is why the definition aligns perfectly with the concept of similarity in geometry. By understanding that similarity transformations allow for resizing (enlarging or reducing), it becomes clear how these transformations help in comparing or relating different geometric figures.