Question

If an image of a triangle is congruent to the pre-image, then the scale factor of the dilation must be n = .

Answer 1

If an image of a triangle is congruent to the pre-image, then the scale factor of the dilation must be n = 1.

Hope it helps!

Answer 2

`scale\ factor=1`

Explanation:

we know that

The scale factor is the ratio of the corresponding sides of the pre-image and the image

so

`scale\ factor=(image)/(pre-image)` ------> equation A

In this problem

If an image of a triangle is congruent to the pre-image

`image=pre-image` ------> equation B

substitute equation B in equation A

`scale\ factor=(pre-image)/(pre-image)`

`scale\ factor=1`