Respuesta :
Answer:
19.05 ft
Step-by-step explanation:
-Given Hypotenuse=22 ft and the base length is 11 feet.
-We apply the Pythagorean theorem to find the height:
[tex]h^2+b^2=H^2\\\\h=\sqrt{22^2-11^2}\\\\=19.05\ feet[/tex]
Hence, the stair's height is 19.05 ft