<u>Given:</u>
A rectangular wall with 2 windows and a 1 door.
<u>To find:</u>
The area of the wall and the amount of paint required to cover the wall.
<u>Solution:</u>
The area of the wall can be determined by subtracting the areas covered by the windows and the door from the area of the entire wall.
The entire wall has a length of 12 feet and a width of 8 feet.
The area of a rectangle
The area of a square
The entire wall's area square feet.
The door has a length of 3 feet and a width of 6 feet.
The area of the door square feet.
The windows are in the shape of a square.
The side length of the windows is 2 feet.
The area of a window square feet.
The area of 2 windows square feet.
The area of the wall square feet.
If a quart of extra-thick exterior paint covers 30 square feet, then 70 square feet will need;
The paint needed to cover 70 square feet quarts.
So the area of the wall was 70 square feet and 2.333 quarts of extra-thick exterior paint is required to cover the wall.