The scale factor of the dilation is: 2.5.
The length of AB is: 6 units.
What is the Scale Factor of a Dilation?
The scale factor of a dilation (reduction or enlargement) = dimension of new figure / corresponding dimension of original figure.
The scale factor of the image given = B'C'/BC
Scale factor = 9.5/3.8 = 2.5
To find the length of AB, divide the length of A'B' by the scale factor of the dilation.
AB = 15/2.5
AB = 6 units. (option A)
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