Verified answer

[tex]\frac{3 \times 3}{ \frac{ \sqrt{2} }{2} } = \frac{9}{ \frac{ \sqrt{2} }{2} } = 9 \div \frac{ \sqrt{2} }{2} = 9 \times \frac{2}{ \sqrt{2} } = \frac{18}{ \sqrt{2} } = \frac{18 \sqrt{2} }{ \sqrt{2} \times \sqrt{2} } = \frac{18 \sqrt{2} }{2} = 9 \sqrt{2} [/tex]