The circumference of a circle with a radius of 12.5 is 78.54 to two decimal places.
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The circumference of a circle whose diameter is 8 inches is about 25.13 inches.
The circumference of circle whose diameter is 10 is: 31.42 (diameter x Pi = circumference).
The radius and diameter of a circle whose circumference is 25.12 are:r = 4d = 8
The area of circle whose circumference is 100 inches is: 795.8 square inches.
Circumference = (pi) x (diameter) = 10 pi = 31.416 yards (rounded)