Answer:
x = 5
Explanation:
The triangles are similar but one of them has been dilated.
Build a proportional relation:
[tex]\rightarrow \sf \dfrac{x}{2} = \dfrac{12.5}{5}[/tex]
Cross multiply:
[tex]\rightarrow \sf x = \dfrac{2(12.5)}{5}[/tex]
Evaluate following:
[tex]\rightarrow \sf x = 5[/tex]
