The circumference of a circle is 22π inches. Find the area of that circle. Substitute 3.14 for pi. Express your answer to the hundredths place.(1 point)

in.2

1 answer

To find the area of the circle, we first need to find the radius. We know that the circumference \( C \) of a circle is given by the formula:

\[ C = 2\pi r \]

Given that the circumference is \( 22\pi \) inches, we can set up the equation:

\[ 22\pi = 2\pi r \]

To solve for \( r \), we can divide both sides by \( 2\pi \):

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

Next, we find the area \( A \) of the circle using the formula:

\[ A = \pi r^2 \]

Substituting \( r = 11 \) inches into the area formula:

\[ A = \pi (11^2) = \pi (121) \]

Now substituting \( \pi \) with \( 3.14 \):

\[ A = 3.14 \times 121 \]

Calculating this product:

\[ A = 3.14 \times 121 = 379.94 \]

Thus, the area of the circle is:

\[ \boxed{379.94} \text{ in}^2 \]