Question

calculate the area of the circle. 12 in area of a circle: 3.14 × r² a = ? in² round to the nearest hundredth.

Explanation:

Step1: Identify the radius

The radius \( r \) of the circle is given as 12 inches.

Step2: Use the area formula for a circle

The formula for the area \( A \) of a circle is \( A = \pi r^2 \). Here, we use \( \pi \approx 3.14 \) and \( r = 12 \). First, calculate \( r^2 \): \( 12^2 = 144 \). Then, multiply by 3.14: \( A = 3.14 \times 144 \).

Step3: Perform the multiplication

\( 3.14 \times 144 = 452.16 \).

Answer:

452.16