Pi is a number. You get pi when you divide the circumference of a circle by it's radius. 22/7=3.14 is the closest fraction.
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There is no formula for Pi, it cannot be represented by any formula. It is a fundamental constant.
There is only one formula for pi, which is the ratio of the circumference to the diameter of a circle.
It is the formula for finding the circumference of a circle which is the same as 2*pi*radius
the circumference formula uses pi and the formula is pi (3.14) times what ever the diameter is and that's one formula i know and I'm in fifth grade
The formula for the area of a circle is pi * radius squared. The circumference of a circle's formula is pi * diameter. NOTE: pi equals approx. 3.14