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The circumference of a circle (the distance around the perimeter) is calculated by mulitplying a constant value called Pi (which equals 3.14 and is true for all circles), times the circle's diameter (distance across the center).
Therefore, to answer your question, C = Pi x D, or 3.14 x 20in, or 62.8 inches.
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What is the answer to circles and circumference?
circumference = 2*pi*radius or pi*diameter
What is the circles diameter if the circumference is 62.8?
diameter = circumference divided by pi = 62.8/3.14 = 20
If circle circumference is 12 what is diameter?
The diameter of a circle with a circumference of 12 is: about 3.82To to this calculation for other circles, just divide the circumference by Pi (about 3.1416). The result is the diameter.
What is the circumference of a centermeter circle?
The relationship of a circles circumference to it's diameter is Pi x diameter. So a 1cm diameter circle will have a circumference of 3.142 cm to the third d.p.
How do you calculate circumference?
to calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. the you have circumference!
