To find the missing measurement (the bottom), we can use the formula for the area of a triangle:
\[ \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \]
In this case, we know the area and the height, so we can rearrange this formula to solve for the base:
\[ \text{base} = \frac{2 \times \text{Area}}{\text{height}} \]
Given:
- Area = 14 ft²
- Height = 3.5 ft
Now, substitute the values:
\[ \text{base} = \frac{2 \times 14 , \text{ft}^2}{3.5 , \text{ft}} = \frac{28 , \text{ft}^2}{3.5 , \text{ft}} \]
Calculating the base:
\[ \text{base} = 8 , \text{ft} \]
Thus, the missing measurement for the bottom is 8 ft.