question: From the cockpit of an aeroplane flying at an altitude of 3000 m, the angle of depression to the airport is 57°. The aeroplane continues to fly in the same straight line, and after a few minutes the angle of depression to the airport becomes 67°.
  Now find the distance between the two sightings.
  
  Round your answer to the nearest metre.
query_wo: Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
  Question: From the cockpit of an aeroplane flying at an altitude of 3000 m, the angle of depression to the airport is 57°. The aeroplane continues to fly in the same straight line, and after a few minutes the angle of depression to the airport becomes 67°.
  Now find the distance between the two sightings.
  
  Round your answer to the nearest metre.
query_cot: Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
  Question: From the cockpit of an aeroplane flying at an altitude of 3000 m, the angle of depression to the airport is 57°. The aeroplane continues to fly in the same straight line, and after a few minutes the angle of depression to the airport becomes 67°.
  Now find the distance between the two sightings.
  
  Round your answer to the nearest metre.
question_for_eval: From the cockpit of an aeroplane flying at an altitude of 3000 m, the angle of depression to the airport is 57°. The aeroplane continues to fly in the same straight line, and after a few minutes the angle of depression to the airport becomes 67°.
  Now find the distance between the two sightings.
  
  Round your answer to the nearest metre.