Circumference = 2*pi*r
r = 6.8/2
= 3.4
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Circumference = 2*pi(3.4)
= 21.4
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The diameter will be: 68/pi
Diameter of a circle = circumference/pi
If the circumference of a circle is 17.27, the diameter is: 5.5
The diameter of a circle with the circumference of 3.25 is: 1.034
If a circle's diameter is 10, the circumference is: 31.416