Respuesta :

LovableLeah

Answer:

13

Step-by-step explanation:

linandrew41

Assuming that this is a right triangle, we can use the Pythagorean theorem.

     

[tex](length-of-leg-1)^2+(length-of-leg-2)^2 = (length-of-hypotenuse)^2\\15^2 + x^2 = (\sqrt{394} )^2\\225 + x^2 = 394\\x^2 = 169\\x = 13[/tex]

Hope that helped!