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Q: How can we prove that when a circle's diameter is 1 its circumference is pi?

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circumference = 2*pi*radius or pi*diameter

diameter = 12.56/pi

They are all related to circles Circumference = pi * diameter = 2 * pi * radius

Pi times the diameter of a circle gives its circumference.

The ratio of the circumference of a circle to its diameter is Pi. (3.14159)

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

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!

To calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. Then you get the circumference.

In circles the circumference is 3.14 (pi) times the Diameter.

What is the relationship between the circumference and the diameter? Answer The circumference divided by pi gives the diameter. d = C / pi An alternate way to express the above answer. For all circles, pi is the ratio of the circumference to the diameter pi = C / d

diameter = circumference divided by pi = 62.8/3.14 = 20

It is: diameter = 31.4/pi which is about 10 units

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