Question

An earthquake was felt throughout a circular area of 1,808.64 square miles. What was the radius of the circular area?

Answer 1

Answer:

24 miles

Step-by-step explanation:

Answer 2

A. 24 miles

Explanation:

the area inside a circle is given by:

$A=\pi r^2$

where r is the radius of the circle.

In this problem, we know the circular area:

$A=1,808.64 mi^2$

So we can re-arrange the equation above to find r, the radius:

$r=\sqrt{\frac{A}{\pi}}=\sqrt{\frac{1,808.64}{\pi}}=24.0 mi$

so, the radius of the circular area is 24 miles.