Tessa designs a supply closet as an addition to her house. The closet is pictures and its total area is 36 square feet. What is the length in feet of the side of the supply closet labeled with a question mark?
The total area of the supply closet is 36 square feet, and we know that the area of a rectangle is calculated by multiplying the length by the width. Therefore, if we let the length be x and the width be y, we have:
x * y = 36
Since we are looking to find the length of the side labeled with a question mark, we can set y as the unknown side and x as the side with the question mark. Therefore:
x * x = 36
x^2 = 36
x = √36
x = 6
So, the length in feet of the side of the supply closet labeled with a question mark is 6 feet.