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To find the circumference of a circle, you use the formula C = 2Ï€r, where r is the radius of the circle.
Given that the radius is 3 feet, the circumference can be calculated as:
C = 2 x 3.14 x 3
C = 18.84 feet
Therefore, the circumference of a circle with a radius of 3 feet is approximately 18.84 feet.