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It is pi which is an irrational number which is approximately 3.14159

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Q: What is the ratio of a circumfrence of a circle to its diameter?
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HOW TO FIND the circumfrence of a circle?

The circumference of a circle is (diameter) multiplied by (pi).


How do you find the circumfrence of a circle if you have the diameter?

By multiplying the diameter by pi, since the circumference of a circle is 3.14 times the diameter.


What is the Circumfrence formula of a circle?

pi times diameter


How do you find the diameter of a circle if you have the circumfrence?

divide by pi which is 3.1415927 and on and on


What is the circumfrence of a circle with a diameter of 16 in?

Circumference of a circle = pi*diameter Circumference = 50.26548246 or 50 to the nearest inch


If a circle has the diameter of 8 what is the circumfrence?

The formula is circumference= pi times diameter. pi=3.1415926.


What is the circumfrence of a circle with a 7 inch diameter?

Circumference = pi*diameter = 21.99 inches, approx.


What is the circumfrence of a circle if its diameter is 7 inches?

7 pi = 21.991 (rounded)


How would you find the circumfrence of a circle?

If you know the diameter of the circle, multiply that by Pi (about 3.1416). The result is the circumference.


What is the circumfrence of a circle?

Circumference of a circle = 2*pi*radius or pi*diameter


How are the circumfrence and diameter of a circle related?

the formula to find the circumference of a circle is pi times the diameter. So basically take the diameter and multiply it by 3.14 and that's the circumference.


What is the formula for the circumference of a circle given a radius?

Circumfrence=diameter X 3.14 (diameter=2 X radius)