circumference = 2*pi*3.4 or pi*6.8
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Circumference = 2*pi*r = 34*pi inches.
The formula for the circumference of a circle is 2.pi.r where r= the radius, since the diameter is 2.r (two times the radius),the circumference will be pi.diameter. pi=3.14159... so for a diameter of 34mm the circumference=pi.34=106.8mm
you can divide the perimeter(circumference) by pi(3.14) and then once you get your answer you divide that by two giving you the length of the radius of the circle. ex: perimeter = 34pi 34pi/pi 34/2=diameter 16=radius
The formula for calculating the circumference of a circle is 2*pi*radius. The radius is half of the diameter, so if the diameter is 34 inches, then the radius is 17. So we have two times pi times seventeen, which gives us 34 pi. If you need a more specific number, multiply 34 by 3.14. You get 106.76 inches.
17