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Students in Mr.Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign?

A.The diameter is about 1/3 of the circumference
B.The diameter is about 1/2 of the circumference
C.The diameter is about 2 times more than the circumference
D.The diameter is about 3 times more than the circumference

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    C = pi * d

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