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a = 8 cm = H
Szukane:
Pc=?
V=?
Pc= 2*Pp + Pb
Pc= 2* a² * √3 :2 + 3 * a²
Pc= 2 * 8² * √3 :2 + 3 * 8²
Pc = 2 * 64 * √3 : 2 + 3* 64
Pc = 64 √3 + 192 cm²
V= Pp * H
V = 64√3 * 8
V= 512√3 cm³