Solution:
The formula for the area of a circle is given by A = πr^2, where A is the area and r is the radius of the circle.To solve for the radius r, we need to rearrange the formula:A = πr^2We want to isolate r, so we divide both sides by π:A/π = r^2Next, to solve for r, we need to take the square root of both sides:r = √(A/π)This matches with option C:C. r = √(A/π)