Well, the equation for finding the circumfrence of a circle is (diameter)(pi). That is diameter times pi. since the diameter of a circle is 2 radii, we can say that there is 2(pi) radii in a circle.
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NoneAdditional Information:-Unless it is the diameter of the circle which is its the largest chord then it will have a length equal to two radii (but the chord itself has no radii).
2π radii=1 circumference *π=pi
There are an infinite number of radii in a circle.
A circle has one curved line and it is its circumference
A circle with a circumference of 188 miles has an area of about 1,800,055 acres.