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Pp = (a²√3) / 4
Pp = (100√3) / 4 = 25√3
V = 25√3 * 10 = 250√3
Dane:
a=10cm
h=10cm
Pp=a²/4√3
V=Pp*h=a³/4√3=1000/4√3=250√3≈433,013cm³
Odp Objętość tego graniastosłupa wynosi 433,013cm³