Answer: If the scale factor is 1, then the original image and the image produced are congruent.
When the scale factor is exactly 1, the copy is the same size as the original.
It is commonly used in maps to represent the actual figures in smaller units. For example, a scale of 1:3 means 1 on the map represents the size of 3 in the real world. The scale factor is a conversion factor - a number that is used to increase or decrease the size of a figure.
The scale factor is the ratio that determines the proportional relationship between the sides of similar figures. For the pairs of sides to be proportional to each other, they must have the same scale factor. In other words, similar figures have congruent angles and sides with the same scale factor
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