Calculate the volume of the half cylinder with a diameter of 6 cm and a height of 12 cm. Correct to one decimal place.
Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: Calculate the volume of the half cylinder with a diameter of 6 cm and a height of 12 cm. Correct to one decimal place.
Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: Calculate the volume of the half cylinder with a diameter of 6 cm and a height of 12 cm. Correct to one decimal place.