The diameter of a circle with acircumference of 47 pi is: 47 (the circumference divided by Pi = diameter).
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The distance across a circle through the center is called the diameter. The distance around a circle is called the circumference. Pi is the ratio of the circumference of a circle to the diameter. So,2 radius x Pi = circumferencePi is approximately 3.14159265358979323846...
pi = circumference/diameter circumference = pi*diameter or 2*pi*radius
Diameter of a circle = circumference/pi
Circumference = diameter(pi) so divide the circumference by pi to get the diameter.
Circumference of any circle = (pi) x (diameter) Circumference of this particular circle = (pi) x (70 yd)