If the area of the circle is 97.9 units squared, what is the radius?

r = 5.58

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

97.9 = 3.14 r^2

Divide each side by 3.14

97.9/3.14 = 3.14 / 31.4 r^2

31.17834395 = r^2

Take the square root of each side

sqrt (31.17834395) = sqrt (r^2)

5.583757153 = r