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The process you would use to find the circumference of a circle completely

depends on what information you already have about the circle. For example,

you might be given the circle's area, or its radius, or its diameter, or the length

of one radian of arc along the circumference, and each of those would require a

different method to find the circumference.

The easiest example is the one where you know the circle's diameter. In that

case, simply multiply the diameter by (pi) to get the circumference.

The next easiest case is the one where you have the circle's radius ... let's say

the radius is 1.5 meters. Knowing that the radius is half of the diameter, you

first double the radius, and find that the diameter 3.0 meters. Then you get

the circumference just as you did in the first example ... multiply the diameter

by (pi). With a radius of 1.5 meter, you would find that the circumference is

about 9.425 meters. (rounded)

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10y ago

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More answers

C = pi/D

circumference = 3.14(pi) X the diameter of the circle.

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Wiki User

15y ago
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Q: How do you find circumfrence?
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