Answer :

Answer:

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

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Rewritten by : Barada