Respuesta :

Answer:

C. [tex] 7 \sqrt{2} \: units [/tex]

Step-by-step explanation:

[tex] \sin \: 45 \degree = \frac{7}{x} \\ \\ \frac{1}{ \sqrt{2} } = \frac{7}{x} \\ \\ x = 7 \sqrt{2} \: units[/tex]