H = 2πR
S основания = πR²
V = S*H = 2π²R³
следовательно R = ∛(V/2π²) = ∛(432π²/2π²) = ∛216 = 6
D = 2R = 12
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H = 2πR
S основания = πR²
V = S*H = 2π²R³
следовательно R = ∛(V/2π²) = ∛(432π²/2π²) = ∛216 = 6
D = 2R = 12