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Circumference: The perimeter of a circle
I am just going to substitued & for the pi symbol.
C stands for circumference
The formulas you can use if you are given either the radius or diameter.
C=&d (d stands for diameter)
or
C=2&r (r stands for radius)
Since & is irrational, the number we use to calculate circumference is rounded to 3.14 or 22/7.
So if the radius to a problem was 10, the formula would be...
C=2(3.14 or 22/7)(10)
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∙ 12y ago
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