[tex]V = \frac{1}{3} \times Pp \times H \\ \\ V = \frac{1}{3} \times 3 \times 3 \times 5 = \frac{1}{3} \times 9 \times 5 = \frac{1}{3} \times 45 = \\ = 15[/tex]
Zatem należy wpisać
[tex]3 \times 3 = \boxed{\boxed{9}}[/tex]
