Respuesta :

XxDeanxX

Answer:

the bottom triangle is scaled down version of above one

then

[tex] \frac{18}{6} = \frac{x}{2} [/tex]

[tex]x = 6[/tex]

and

[tex] \frac{18}{6} = \frac{y}{5} [/tex]

[tex]y = 15[/tex]