Scale transformations are mathematical operations that change the size of a shape or object while maintaining its proportions. This can involve enlarging or reducing the dimensions of a figure, such as a triangle or a rectangle, by a specific factor. For example, if a square with a side length of 2 units is scaled by a factor of 3, its new side length will be 6 units. In geometry, scale transformations can be represented using a scale factor, which indicates how much the object will be resized. These transformations are commonly used in various fields, including architecture, engineering, and computer graphics, to create models or simulations that accurately reflect real-world dimensions.