Question

PLEASE HELP! Triangle A’B’C’ is a dilation of triangle ABC.
Note that the images are not necessarily drawn to scale.
What is the scale factor?

Answer 1

the scale factor is (x2)!

9×2 = 18
4 1/2 × 2 = 9

Answer 2

Answer:   0.5

Step-by-step explanation:

We know that the scale factor for dilation is the ratio of the side-length of the image to the side-length of the pre-image.

From the given figure, In Pre-image ΔABC , we have  AC=18              

In Pre-image ΔA'B'C', we have A'C'=9          

Now, the scale factor will be :_

$k=\dfrac{A'C'}{AC}=\dfrac{9}{18}=\dfrac{1}{2}=0.5$

Now, the scale factor for this dilation = 0.5