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Flash · Answer 1 · 2022-04-02T16:45:19+0000

Answer:

C = 8 pi cm

Explanation:

The area of a circle is given by

A = pi r^2

16 pi = pi r^2

Divide each side by pi

16 = r^2

Taking the square root

4 = r

The circumference is

C = 2 * pi *r

C = 2* pi *(4)

C = 8 pi cm

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