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Najpierw obliczamy " l " - tworzącą stożka.
6^2 + 3^2 = l^2
36 + 9 = l^2
l = 3 pierwiastek z 5 cm
V = 1/3 pi * 9 * 6 = 18 pi cm^2
Pp = 9 pi cm^2
Pb = 9 pierwiastek z 5 pi cm^2
Pc = 9 pi (1 + pierwiastek z 5) cm^2
Liczę na NAJ.