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l - tworząca
h - wysokość
d = 2r
z połowy kwadratu:
d = l√2
P = dh/2 = 32
hd = 64
P = l²/2 = 32
l² = 64 => l = 8 => d = 8√2 => r = 4√2
h = 64/d = 64/8√2 = 8/√2 = 4√2
V = Pp * h/3
V = πr² * h/3 = 128√2π/3
Pb = πrl
Pb = 32√2π
jak masz pytania to pisz na pw