Question

This is 45-45-90 I need help

Answer 1

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

$a^{2} + b^{2} = c^{2} 9^{2} + 9^{2} = c^{2} 81+81= c^{2} \sqrt{162} = c = 9\sqrt{2}$