Answer:
Scale factor = [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
Given question is incomplete; find the question in the attachment.
Scale factor = [tex]\frac{\text{Dimension of image}}{\text{Corresponding dimension of preimage}}[/tex]
Scale factor = [tex]\frac{\text{Dimension of image rectangle B}}{\text{Corresponding dimension of preimage rectangle A}}[/tex]
From the figure attached,
Length of rectangle B = [tex]\frac{20}{3}[/tex]
Length of rectangle A = 20
Scale factor = [tex]\frac{\frac{10}{3}}{10}[/tex]
= [tex]\frac{\frac{10}{3}}{10}[/tex]
= [tex]\frac{1}{3}[/tex]
Therefore, image rectangle A is dilated with by a scale factor of [tex]\frac{1}{3}[/tex].
