Answer:
[tex]\huge\boxed{\sf X \approx 57\°}[/tex]
Step-by-step explanation:
For angle X:
Adjacent = 5
Hypotenuse = 9
Using cos θ as the trigonometric ratio.
Solution:
cos θ = adjacent / hypotenuse
cos X = 5 / 9
cos Χ = 0.55
X = cos⁻¹ 0.55
X ≈ 57°
[tex]\rule[225]{225}{2}[/tex]