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4 votes
The radius of a circle is 9 feet. what is the circumference? r=9 ft

2 Answers

6 votes
56.52 feet; You need to multiply 2*pie(3.14)* the radius.
User Forbs
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5 votes
Circumference is 2pir.

2 x 3.14 x 9 = 56.52 feet
User MEURSAULT
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