Question

What is the scale factor of the dilation

Answer 1

The scale factor would be 2, since the image is 2 times bigger than the pre-image.

Hope this helps! :) I did this last year, so this is the correct answer! ;)

Answer 2

Answer:  The answer is 2.

Step-by-step explanation:  We are given to find the scale factor for the dilation of a triangle shown in the figure.

The triangle ABC is dilated to form the triangle A'B'C'.

To find the scale factor, we need to divide the length of one side of the dilated triangle A'B'C' by the length of the corresponding side of the original triangle ABC.

From the figure, we note that

AB = 5 units  and  A'B' = 10 units.

Therefore, the scale factor will be

$S_f=\dfrac{A'B'}{AB}=\dfrac{10}{5}=2.$

Thus, the answer is 2.