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.
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.
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.