V = πh(R² + Rr + r²)/3
V = 20(40² + 40.20 + 20²)/3
V = 20π(1600 + 800 + 400)/3
V = 20π(2800)/3
V = 56000π/3 cm³
Atribuindo π = 3,14
V = 56000 . 3,14/3
V =~58613 cm³
V =~58,6 litros
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V = πh(R² + Rr + r²)/3
V = 20(40² + 40.20 + 20²)/3
V = 20π(1600 + 800 + 400)/3
V = 20π(2800)/3
V = 56000π/3 cm³
Atribuindo π = 3,14
V = 56000 . 3,14/3
V =~58613 cm³
V =~58,6 litros