please help me answer this question!!!!!

Answer:
h = 13ft
Step-by-step explanation:
We can assume that the triangles are similar, so:
5 ft is to 26 ft as 2.5 ft is to h ft.
Which can be set up like this:
[tex]\frac{5}{2.5}=\frac{26}{h}[/tex]
We can cross multiply:
5h = (2.5) (26)
5h = 65
h = 13ft