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The diameter of a circle is 15 ft. Find its circumference in terms of \piπ.
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The diameter of a circle is 15 ft. Find its circumference in terms of \piπ.

User John Naegle
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C= 2pi
15= diameter. Radius= 15/2. R= 7.5
C= 2 times pi times 7.2
C=15 pi
C= 47.1
User Alvinmeimoun
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