d= diagonala
[tex]d = l \sqrt{2} [/tex]
[tex]8 = l \sqrt{2} [/tex]
[tex]l = \frac{8}{ \sqrt{2} } [/tex]
[tex]l = \frac{8 \sqrt{2} }{2} [/tex]
[tex]l = 4 \sqrt{2} [/tex]
[tex]p = 4l = 4 \times 4 \sqrt{2 } = 16 \sqrt{2} [/tex]
[tex]a = {l}^{2} = ( {4 \sqrt{2} })^{2} = 16 \times 2 = 32[/tex]
