8.
[tex] \frac{4 \times 4 \times 9}{3} = 16 \times 3 = 48 {cm}^{3} [/tex]
Odp.B
9.
Pb
[tex]4 \times \frac{5 \times 8}{2} = 4 \times \frac{40}{2} = 4 \times 20 = 80[/tex]
Pc
[tex]80 + 5 \times 5 = 80 + 25 = 105[/tex]
Odp.C
