Respuesta :

AlfabetSewp
In a 45-45-90 triangle, both legs are congruent. So using the pythagorean theorem, we can find the value of j.

[tex] a^{2} + b^{2} = c^{2} 9^{2} + 9^{2} = c^{2} 81+81= c^{2} \sqrt{162} = c = 9\sqrt{2} [/tex]