Answer:
x = 1
Step-by-step explanation:
See the attached figure.
Here, the parallelogram P was dilated to form parallelogram P'.
Therefore, P and P' will be similar to each other.
So, the corresponding sides of parallelogram P and parallelogram P' will be in the same ratio.
Then, [tex]\frac{20}{10} = \frac{8}{x + 3}[/tex]
⇒ 2(x + 3) = 8
⇒ 2x + 6 = 8
⇒ 2x = 2
⇒ x = 1 (Answer)
