Question

the radius of a circle is 8 miles. what is the area? give the exact answer in simplest form. square miles

Explanation:

Step1: Recall area formula

The formula for the area of a circle is $A = \pi r^{2}$, where $r$ is the radius.

Step2: Substitute radius value

Substitute $r = 8$ into the formula: $A=\pi\times8^{2}$.

Step3: Calculate the result

$8^{2}=64$, so $A = 64\pi$.

Answer:

$64\pi$ square miles