8 in

Shape: Circle
Find the area of the circle.
Area of a circle: 3.14 x r²
A = [?] in²
Round to the nearest hundredth.

1 answer

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

\[ A = \pi r^2 \]

Given that the diameter of the circle is 8 inches, the radius \( r \) is half of the diameter:

\[ r = \frac{8}{2} = 4 \text{ inches} \]

Now, plug the radius into the area formula. Using \( \pi \approx 3.14 \):

\[ A = 3.14 \times (4)^2 \]

Calculating \( (4)^2 \):

\[ (4)^2 = 16 \]

Now multiply:

\[ A = 3.14 \times 16 \]

Calculating \( 3.14 \times 16 \):

\[ A = 50.24 \]

So, the area of the circle is

\[ A \approx 50.24 \text{ in}^2 \]

Rounded to the nearest hundredth, the final answer is:

\[ A = 50.24 \text{ in}^2 \]