The first pentagon is dilated to form second pentagon as shown in the given figure.
We have to find the scale factor.
A scale factor is a number which scales, or multiplies, some quantity. The ratio of any two corresponding lengths in two similar geometric figures is also called a scale factor.
Therefore, Scale factor = [tex] \frac{5}{4} [/tex]
= 1.25
And we can observe,, [tex] 4 \times 1.25 = 5 [/tex]
Therefore, 5 is the scale factor.
