To find the area of a circle, you can use the formula:
\[ \text{Area} = \pi r^2 \]
where \( r \) is the radius of the circle. Since the diameter is given as 5 ft, the radius \( r \) is half of the diameter:
\[ r = \frac{\text{Diameter}}{2} = \frac{5 \text{ ft}}{2} = 2.5 \text{ ft} \]
Now, substitute the radius into the area formula:
\[ \text{Area} = \pi (2.5)^2 = \pi (6.25) = 6.25\pi \]
Using \( \pi \approx 3.14 \):
\[ \text{Area} \approx 6.25 \times 3.14 \approx 19.625 \text{ ft}^2 \]
To the nearest tenth, the area of the circle is:
\[ \text{Area} \approx 19.6 \text{ ft}^2 \]
So, the area of the circle is approximately 19.6 ft².