V = S oc * H
S oc = a^2 * sin L = 9 *sin 60 = 9*sqrt(3) / 2 = 4,5 * sqrt (3)
V= 4,5 * sqrt(3) * 5 =22,5 * sqrt (3)
V = S oc * H
S oc = a^2 * sin L = 9 *sin 60 = 9*sqrt(3) / 2 = 4,5 * sqrt (3)
V= 4,5 * sqrt(3) * 5 =22,5 * sqrt (3)