Odpowiedź:
[tex]V=\frac{a^3\sqrt{2} }{12} \\\\V=\frac{(3\sqrt{2})^3\sqrt{2} }{12}\\\\ V=\frac{27*2\sqrt{2}\sqrt{2} }{12} =\frac{27*2*2}{12} =\frac{54}{6} =9cm^3\\\\[/tex]
