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I need help on the following please?

A group of clowns performs in a ring with an area of about 2,123 square feet. What is the circumference of the ring? Choose the closest answer.

156 ft.
52 ft.
163 ft.
82 ft.

Thank You. Please explain the answer

2 answers

Area =πr^2

Circumference = 2πr

Solve for r in first equation to put in second.
1.457
i saw it in a calculator
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