To compute the amount of Total Living/Finished area, you would multiply:

To determine the amount of Total Living/Finished area in a property, the correct method is to multiply the length by the width of each room. This calculation gives you the area of a room in square units, which is essential when measuring living space in real estate.

The total living area is typically computed by summing the areas of all the finished spaces within the home. By multiplying the length and width, you get the floor space each individual room occupies. This measurement is critical for various purposes, including evaluating the property’s market value, determining taxes, and understanding the usability of the space.

Considering the context of the other options, multiplying the floor area by the ceiling height would provide volume, not area. The volume of each room alone doesn't contribute to assessing the total living area, as it also involves dimensions of additional spaces. Lastly, the number of windows has no direct relationship to the calculation of living space; it pertains more to the architectural aesthetics and may influence light and ventilation rather than the area. Thus, selecting length by width accurately addresses the requirement for calculating total living/finished area.