A cone is sliced in half to produce the solid shown. The slant height is 9 centimeters and diameter is 3 centimeters.

Find the volume of the solid, correct to two decimal places.
Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: A cone is sliced in half to produce the solid shown. The slant height is 9 centimeters and diameter is 3 centimeters.

Find the volume of the solid, correct to two decimal places.
Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: A cone is sliced in half to produce the solid shown. The slant height is 9 centimeters and diameter is 3 centimeters.

Find the volume of the solid, correct to two decimal places.