Odpowiedź:
[tex]a^{2} + a^{2} =d^{2} \\d^{2}= 2a^{2}\\d=\sqrt{2a^{2}} = \sqrt{2} *\sqrt{a^{2}}[/tex]
[tex]d=a\sqrt{2} \\\\d=12\\12=a\sqrt{2}[/tex]
[tex]a=\frac{12}{\sqrt{2}} /* \sqrt{2}\\a=\frac{12\sqrt{2}}{2} \\a=6\sqrt{2}[/tex]
Szczegółowe wyjaśnienie:
