The floor of a room is rectangular, [[$ 6010 $]] mm long and [[$ 4100 $]] mm wide. What is the distance between the center of the floor and the corner of the ceiling, when the height of the room is [[$ 2520 $]] mm? (Source: Entrance exam for engineering education, spring 1992)

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Answer: The distance between the center of the floor and the corner of the ceiling is m.