Final answer:
To calculate the area of a rectangular room, multiply the length and width together.
Step-by-step explanation:
To calculate the area of a rectangular room, you multiply the length and width together. In this case, the length is 3.955 ± 0.005 m and the width is 3.050 ± 0.005 m. So the area can be calculated as (3.955 m) × (3.050 m) = 12.06775 m². When rounding to the correct number of significant figures, the area of the room is 12.07 m².