Respuesta :

Answer:

x = 20

Step-by-step explanation:

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

[tex]\frac{x}{12}[/tex] = [tex]\frac{15}{9}[/tex] ( cross- multiply )

9x = 180 ( divide both sides by 9 )

x = 20

Answer:

X = 24

Step-by-step explanation:

Since the two triangles are similar such that one is twice the other, twice of 9 is 18; and thus twice of 12 equals 24.