Respuesta :

Answer:

x = 3.6

Step-by-step explanation:

In similar triangles, ratio of corresponding  sides are equal

[tex]\frac{EF}{BC} =\frac{ED}{AB}\\\\\frac{x}{2.4}=\frac{6}{4}\\\\x = \frac{6}{4}*2.4[/tex]

x = 6 * 0.6

x = 3.6