The

**scale factor**, or linear**scale factor**, is the ratio of two corresponding side lengths of similar figures. Conversely,**you**can use the side lengths of two similar figures to calculate the**scale factor**. These problems involve**multiplication**or require**you**to simplify fractions.What is the dilation factor?

Answer. A

**dilation**is a type of transformation that changes the size of the image. The scale factor, sometimes called the scalar factor, measures how much larger or smaller the image is. Below is a picture of each type of**dilation**(one that gets larger and one that gest smaller)Are dilated figures congruent?

If a

**figure**is enlarged or reduced and retains its shape, then it is said to be**dilated**. This is an aspect of similarity as shown below. Note that the stretching (or shrinking) of a shape is called a**dilation**. It is clear that**dilation**is not a**congruent**transformation, because the size of the shape is changed.