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Verified answer
Luas Permukaan Tabung :L = 2πr(r + t)
L = 2 × π × 6 × (6 + (6 × 2))
L = 2π × 6 × (6 + 12)
L = 2π × 6 × 18
L = 12π × 18
L = 216π
Jawaban : B. 216π
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