4-5, Dilations (Similarity Transformations) (8.G.3 and 8.G.4 Extended)
A dilation is a transformation in which a figure and its image are similar. The ratio of a length in the image to the corresponding length in the original figure is the scale factor.
A dilation with a scale factor greater than 1 is called an enlargement. The image is bigger than the original. A dilation with a scale factor less than 1 is called a reduction. The image is smaller than the original.
A dilation with a scale factor greater than 1 is called an enlargement. The image is bigger than the original. A dilation with a scale factor less than 1 is called a reduction. The image is smaller than the original.