Cześć!
Obw=2a+2b
[tex]14 \sqrt{2} = 2 \times 3 \sqrt{2} + 2b \\ 14 \sqrt{2} = 6 \sqrt{2} + 2b \\ 14 \sqrt{2} - 6 \sqrt{2} = 2b \\ 8 \sqrt{2} = 2b \\ 4 \sqrt{2} = b[/tex]
[tex]p = 4 \sqrt{2} \times 3 \sqrt{2} = 12 \sqrt{4} = 12 \times 2 = 24 {cm}^{2} [/tex]
Pozdrawiam!
