Find the length of side xx in simplest radical form with a rational denominator.

Answer:
Solution given:
it is a right angled isosceles triangle
so
perpendicular [p]=base[b]=3
hypotenuse [h]=x
we have
by using Pythagoras law
p²+b²=h²
3²+3²=h²
18=h²
h=[tex]\sqrt{18}[/tex]
x=[tex]\bold{3\sqrt{2}}[/tex]