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Câu 649: A cylindrical water tank has a diameter of 4 meters and a height of 3 meters. The tank is filled with water to 80% of its full capa...

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Câu 649: A cylindrical water tank has a diameter of 4 meters and a height of 3 meters. The tank is filled with water to 80% of its full capacity. What is the volume of water currently in the tank? (Use π ≈ 3.14)

A. 30.14 m³

B. 37.70 m³

C. 40.19 m³

D. 75.36 m³

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