To find the side length of the supply closet labeled with the question mark, we first confirm the areas already calculated:
-
Area of the rectangle:
- Length = 8 ft
- Width = 3 ft
- Area = Length × Width = 8 ft × 3 ft = 24 sq ft
-
Area of the square:
- Side = 2 ft
- Area = Side × Side = 2 ft × 2 ft = 4 sq ft
Next, we add these areas together:
- Total area of the rectangle + area of the square = 24 sq ft + 4 sq ft = 28 sq ft.
Now, we know the total area of the entire supply closet is 36 sq ft, so we can determine the remaining area:
- Remaining area = Total area - Area of rectangle - Area of square
- Remaining area = 36 sq ft - 28 sq ft = 8 sq ft.
We need to find the length of the side of the shape corresponding to this remaining area.
Assuming that this area is a square, we denote the side length of the square as \( x \). The area of that square is:
\[ x^2 = 8 \text{ sq ft} \]
To find \( x \), we take the square root of both sides:
\[ x = \sqrt{8} = 2\sqrt{2} \text{ ft}. \]
To express \( \sqrt{2} \) in decimal form:
\[ \sqrt{2} \approx 1.41421356. \]
Thus:
\[ x \approx 2 \times 1.41421356 \approx 2.82842712 \text{ ft}. \]
Therefore, the length of the side of the supply closet labeled with the question mark is:
\[ 2\sqrt{2} \text{ feet} , \text{or} , 2.82842712 \text{ feet (exact decimal)}. \]
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