Final answer:
The average height of a headboard can be calculated using the given information.
Step-by-step explanation:
The average height of a headboard from the floor to the top edge can vary depending on the specific headboard design. However, based on the given information, we can calculate the average height.
One example states that the top of the headboard is 1.715 m from the floor and the bottom is 0.825 m from the floor. The height of the mirror, which is half the height of a person, is 0.890 m.
Therefore, the average height of the headboard would be:
Average height = (Top height + Bottom height) / 2
Average height = (1.715 m + 0.825 m) / 2 = 1.27 m