Resposta:
[tex]\textsf{Leia abaixo}[/tex]
Explicação passo a passo:
[tex]\mathsf{\dfrac{x}{sen\:45\textdegree} = \dfrac{2\sqrt{2}}{sen\:30\textdegree}}[/tex]
[tex]\mathsf{\dfrac{x}{\dfrac{\sqrt{2}}{2}} = \dfrac{2\sqrt{2}}{\dfrac{1}{2}}}[/tex]
[tex]\mathsf{\dfrac{2x}{\sqrt{2}} = 4\sqrt{2}}[/tex]
[tex]\mathsf{2x = 8}[/tex]
[tex]\boxed{\boxed{\mathsf{x = 4}}}[/tex]
