Smaller circle radius of annulus (given area and larger circle radius)

Formula

Smaller circle radius of annulus (given area and larger circle radius) formula
r
radius of smaller circle
A
area of annulus
R
radius of larger circle

Formula description

An annulus is a ring-shaped geometric figure, or more generally, a term used to name a ring-shaped object. Or, it is the area between two concentric circles.

Calculator (how to use calculator?)

Smaller circle radius of annulus (given area and larger circle radius) formula
A
R
r
Precision

Formula code

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References

  1. Wikipedia: (Annulus mathematics).

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