Odpowiedź :
[tex]a = 6 \ cm^{2}\\H = 15 \ cm\\\\V = \frac{1}{3}P_{p}\cdot H\\\\V = \frac{1}{3}\cdot6 \ cm^{2}\cdot15 \ cm\\\\\boxed{V = 30 \ cm^{3}}[/tex]
[tex]a = 6 \ cm^{2}\\H = 15 \ cm\\\\V = \frac{1}{3}P_{p}\cdot H\\\\V = \frac{1}{3}\cdot6 \ cm^{2}\cdot15 \ cm\\\\\boxed{V = 30 \ cm^{3}}[/tex]