In the context of linear feet for baseboards, what does one need to do?

The correct answer involves the process of adding up the lengths of the walls to determine the total linear feet needed for baseboards. This approach is essential because baseboards are installed along the perimeter of a room where the walls meet the floor. By measuring the lengths of each wall, you can accurately estimate how much baseboard material you will need for the entire room or space.

It's important to focus on the wall lengths rather than the height of the walls, as that is not relevant when calculating baseboard requirements. Similarly, adding up the lengths of all floors or calculating square footage does not provide the necessary information for determining the amount of baseboard trim, as these measurements would pertain to different aspects of the room's dimensions. Therefore, summing the lengths of the walls is the correct method for obtaining the linear footage required for baseboards.