In the figure above, equilateral triangle OPQ is inscribed in the central angle ...【小站备考】

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Question 8 Selected one answer choice

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In the figure above, equilateral triangle OPQ is inscribed in the central angle of the circle and has perimeter 18. What is the area of circle O?

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A.6π

B.12π

C.18π

D.36π

E.72π

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