Odpowiedź:
[tex]promien = r= \frac{1}{2} \times 4 = 2cm[/tex]
[tex]wysokość = h = 12cm[/tex]
[tex]P = 2\pi \times 2(2 + 12) = 2\pi \times 2 \times 14 = 2\pi \times 28 = 56\pi[/tex]
[tex]V = \pi \: \times {2}^{2} \times 12 = \pi \times 4 \times 12 = 48\pi[/tex]
