21 inches
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21 inches
Circumference = 3.14 x diameter Diameter = radius x 2 So...... 3.14 x 132 = 414.48
The diameter of a circle with a circumference of 2.75 inches is: 0.875 inches (circumference divided by pi = diameter).
Diameter = 11.14 inches (approx) ~ Circumference can be found by pi * diameter.
Circumference = pi*diameter = 87.96 inches.