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Pi is related to the area and the circumference of the circle. The area is Pi multiplied by the radius of the circle squared and the circumference is Pi times the diameter of the circle.
if you're wondering how it works, pi is the area of a circle with radius of 1 (unit), and the circumference of a circle with a radius of ½ (unit).
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Why is pi used in every circle formula?
By definition Pi is the relation between the radius and circumference of a circle.
Is the radius of a circle divided by the circumference of a circle pi?
No, the circumference of the circle divided by the diameter is pi.
What is the formual for pi?
the formula for pi is the ratio of the circumference of a circle to the diameter of the circle
Why is the unit circle called two pi?
A unit circle is not normally called 2 pi. Because the radius length measure of the unit circle is 1 unit, then the circumference of a unit circle is 2*pi, and its area is pi.
If the area of one circle is four times as large as a smaller circle with radius of 3 inchesThe radius of the larger circle is?
6 inches pi*32 = 9*pi square inches (smaller circle) pi*62 = 36*pi square inches (larger circle)
