Question

the chalk circle around the pitcher’s mound has a diameter of 16 ft.

what is the area of the pitcher’s circle?

a = ? ft²
8π
16π
64π
256π

Explanation:

Step1: Find the radius

The diameter \( d = 16 \) ft, and the radius \( r=\frac{d}{2}\). So \( r = \frac{16}{2}=8 \) ft.

Step2: Calculate the area

The formula for the area of a circle is \( A=\pi r^{2} \). Substitute \( r = 8 \) into the formula: \( A=\pi\times8^{2}=\pi\times64 = 64\pi \) square feet.

Answer:

\( 64\pi \)