A plane is flying at 100 meters altitude. A man from the plane observes two bikes in a straight line on the same sides of the plane on the ground with angles of depression as 30° and 45°. The distance between the bikes is:
1
100(√ 3 - 1) m
2
109 (√ 3 + 1) m
3
110 (√ 3 - 1) m
4
108 (√ 3 + 1) m