Question

9 in
Shape: Circle
Calculate the area of the circle.
Area of a circle: 3.14 x r²
A = [?]in²

Answer 1

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

\[
A = \pi r^2
\]

You've provided \( r = 9 \) inches. Using \( \pi \approx 3.14 \):

\[
A = 3.14 \times (9)^2
\]

First, calculate \( 9^2 \):

\[
9^2 = 81
\]

Now, substitute back into the area formula:

\[
A = 3.14 \times 81
\]

Now perform the multiplication:

\[
A \approx 3.14 \times 81 = 254.34
\]

Thus, the area of the circle is approximately:

\[
A \approx 254.34 \text{ in}^2
\]