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Help quickly with this math question

Help quickly with this math question-example-1
User EnGassa
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1 Answer

3 votes

Answer:

The circumference of circle is 8π ft.

Explanation:

Given that the formula of area of a circle is A = π×r² where r represents the radius of circle. So you have to find the radius first :


area = \pi * {r}^(2)


let \: area = 16\pi


\pi {r}^(2) = 16\pi


{r}^(2) = 16


r = √(16)


r = 4 \: feet

Next, you have to apply circumference of circle formula, C = 2×π×r :


c = 2 * \pi * r


let \: r = 4


c = 2 * \pi * 4


c = 8\pi \: feet