The problem asks to find the area of a circle with a diameter of 3.5 feet.

1. Problem Description

The problem asks to find the area of a circle with a diameter of 3.5 feet.

2. Solution Steps

First, we need to find the radius of the circle. The radius is half of the diameter.

$r = \frac{d}{2}$

$r = \frac{3.5}{2} = 1.75$ feet.

The area of a circle is given by the formula:

$A = \pi r^2$

Substituting the value of $r$, we get

$A = \pi (1.75)^2$

$A = \pi (3.0625)$

Using the value of $\pi \approx 3.14159$, we have

$A \approx 3.14159 \times 3.0625$

$A \approx 9.6211271875$

Rounding to two decimal places, we have

$A \approx 9.62$ square feet.

3. Final Answer

The area of the circle is approximately 9.62 square feet.