22 ft

Shape: Circle
Calculate the area of the circle.
Area of a circle: 3.14 x r²
A = [?]ft²
Round to the nearest hundredth.

1 answer

To calculate the area of a circle, you can use the formula:

\[ A = \pi r^2 \]

Given that you specified the diameter of the circle as 22 ft, we first need to find the radius. The radius (r) is half of the diameter:

\[ r = \frac{22 \text{ ft}}{2} = 11 \text{ ft} \]

Now we can plug the radius into the area formula, using \( \pi \approx 3.14 \):

\[ A = 3.14 \times (11 \text{ ft})^2 \] \[ A = 3.14 \times 121 \text{ ft}^2 \] \[ A \approx 380.94 \text{ ft}^2 \]

Rounding to the nearest hundredth, the area of the circle is:

\[ A \approx 380.94 \text{ ft}^2 \]