If an image of a triangle is congruent to the pre-image, the scale factor of the dilation is 1
How to determine the scale factor
From the question, we understand that the images are congruent
This means that, the shape is not dilated.
Instead, the shape is translated, reflected or rotated.
When a shape is not dilated, the scale factor is 1
Hence, the scale factor of the dilation is 1
Read more about dilation at:
https://brainly.com/question/10253650
