Answer:
The length of the side y is 8.
Step-by-step explanation:
Use cosine to find the distance of y:
[tex]\frac{y}{8\sqrt{2} }[/tex] = cos 45
[tex]\frac{y}{8\sqrt{2} }[/tex] = 0.70711
y = 0.70711 * 8[tex]\sqrt{2}[/tex]
y = 8
