a) x = 4[tex]\sqrt{2}[/tex]
y = 8[tex]\sqrt{2}[/tex]
z = 8[tex]\sqrt{2} \sqrt{3}[/tex] = 8[tex]\sqrt{6}[/tex]
b) c = 9
a[tex]\sqrt{3}[/tex] = 9
a = [tex]\frac{9}{\sqrt{3} } = \frac{9\sqrt{3} }{\sqrt{3} \sqrt{3} } =\frac{9\sqrt{3} }{3} = 3\sqrt{3}[/tex]
b = 2 x a = 6[tex]\sqrt{3}[/tex]
