question: As shown in the figure, use a sector cardboard with a radius of 24.0 to make a conical hat. If the radius of the bottom surface of the conical hat is 10.0, then the area of ​​this sector cardboard is ()
  Choices:
  A:240πcm^{2}
  B:480πcm^{2}
  C:1200πcm^{2}
  D:2400πcm^{2}
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: As shown in the figure, use a sector cardboard with a radius of 24.0 to make a conical hat. If the radius of the bottom surface of the conical hat is 10.0, then the area of ​​this sector cardboard is ()
  Choices:
  A:240πcm^{2}
  B:480πcm^{2}
  C:1200πcm^{2}
  D:2400πcm^{2}
query_cot: Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
  Question: As shown in the figure, use a sector cardboard with a radius of 24.0 to make a conical hat. If the radius of the bottom surface of the conical hat is 10.0, then the area of ​​this sector cardboard is ()
  Choices:
  A:240πcm^{2}
  B:480πcm^{2}
  C:1200πcm^{2}
  D:2400πcm^{2}
question_for_eval: As shown in the figure, use a sector cardboard with a radius of 24.0 to make a conical hat. If the radius of the bottom surface of the conical hat is 10.0, then the area of ​​this sector cardboard is ()
  Choices:
  A:240πcm^{2}
  B:480πcm^{2}
  C:1200πcm^{2}
  D:2400πcm^{2}