Respuesta :

Answer:

x = 10

Step-by-step explanation:

Since the parallelograms are similar then the ratios of corresponding sides are equal , that is

[tex]\frac{x}{15}[/tex] = [tex]\frac{4}{6}[/tex] ( cross- multiply )

6x = 60 ( divide both sides by 6 )

x = 10

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