The circle with center $O$ has a circumference of $6\sqrt3 \pi.$ If $AC$ is the diameter of the circle, what is

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by Vincen » Wed Oct 06, 2021 6:28 am

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The circle with center $O$ has a circumference of $6\sqrt3 \pi.$ If $AC$ is the diameter of the circle, what is the length of line segment $BC?$

(A) $\dfrac3{\sqrt2}$

(B) $3$

(C) $3\sqrt3$

(D) $9$

(E) $9\sqrt3$

Answer: D

Source: Manhattan GMAT

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Source: Beat The GMAT — Problem Solving | Wed Oct 06, 2021 6:28 am

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