In this exercise we have to have knowledge of triangles, so we can use the theory of similar triangles to find the value of X, like:
[tex]36ft[/tex]
To use similar triangle theory, we have to make a rule of 3, that is:
[tex]6/x=7.5/45[/tex]
[tex]270=7.5x[/tex]
[tex]x=36[/tex]
See more about triangles at https://brainly.com/question/10951564