The circumference of a circle with a diameter of nine feet is: 28.27 feet (diameter x Pi = circumference).
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Make nine equiel distances marks on the perimeter or circumference. Draw a line from the centre to each of these marks.
About nine feet.
9x6=54 square feet
15 feet 7 inches.
Since there are 3 feet in 1 yard, therefore there are 27 feet in 3 yards.