Answer:
[tex]\frac{1}{5}[/tex]
Step-by-step explanation:
Calculate the scale factor as the ratio of the corresponding sides of the image to the original.
corresponding sides are image 0.5 and original 2.5
scale factor = [tex]\frac{0.5}{2.5}[/tex] = [tex]\frac{1}{5}[/tex] = 0.2
