Respuesta :

Solution

For this case we can use the Pythagoras theorem and we have:

[tex]18^2=11^2+x^2[/tex]

And solving for x we got:

[tex]x=\sqrt[]{18^2-11^2}=\sqrt[]{324-121}=\sqrt[]{203}=14.25[/tex]

Then the answer is:

14.25