Answer: The required floor area of the room is 228 sq. ft.
Step-by-step explanation: We are given to find the floor area of a room if it measures 12 ft x 19 ft.
We know that
the floor of a room is always rectangular in shape and the area of a rectangle with length l units and width w units is given by

For the given floor, l = 12 ft and w = 19 ft.
Therefore, the floor area of the room is given by

Thus, the required floor area of the room is 228 sq. ft.