8 in

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

1 answer

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

\[ A = \pi r^2 \]

where \( r \) is the radius of the circle. In this case, the diameter is given as 8 inches, so the radius \( r \) is half of the diameter:

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

Now, substitute \( r = 4 \) into the area formula using \( \pi \approx 3.14 \):

\[ A = 3.14 \times (4)^2 \] \[ A = 3.14 \times 16 \] \[ A = 50.24 \text{ in}^2 \]

So, the area of the circle, rounded to the nearest hundredth, is:

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