Answer:
9[tex]\sqrt{2}[/tex]
Step-by-step explanation:
In an isosceles right triangle, the other two acute angles are equal to each other and this makes this triangle special as it is 45-45-90 degrees triangle.
=>Hypotenuse=leg x [tex]\sqrt{2}[/tex]
=>18/[tex]\sqrt{2}[/tex]=x
Simplify through radicalisation
18[tex]\sqrt{2}[/tex]/ 2
9[tex]\sqrt{2}[/tex] (Simplified)
Thus both legs = 9[tex]\sqrt{2}[/tex] units