Answer:
4 ft.
Step-by-step explanation:
Pythagorean theorem problem.
[tex]X^2+Y^2=Z^2\\\\Y=8, Z=\sqrt{80} \\\\X^2+8^2=\sqrt{80}^2\\\\X^2+64=80\\\\X^2=16\\\\X=\sqrt{16} \\\\X=4[/tex]
A. 4 Feet
