Answer:
Explanation:
Tina can sum up the areas of the remaining walls after subtracting the door area. The resulting value would be the total area of the walls she needs to cover with wallpaper.
To calculate the total area of the walls that Tina needs to cover with wallpaper in her living room, we need to consider the dimensions of each wall and exclude the area occupied by the door. By calculating the area of each wall and subtracting the area of the door, we can determine the total area of the walls to be covered.
To find the total area of the walls, Tina should measure the length and height of each wall in her living room. For example, if there are four walls labeled A, B, C, and D, she would measure the length and height of each wall (e.g., wall A has a length of 10 feet and a height of 8 feet).
Next, Tina needs to calculate the area of each wall by multiplying the length by the height. For wall A, the area would be 10 feet multiplied by 8 feet, resulting in 80 square feet.
After calculating the area of each wall, Tina should determine the area of the door and subtract it from the total area. For instance, if the door occupies an area of 20 square feet, she would subtract that from the total area of the walls.