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Area of Circular Annulus

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Last modified by
on
May 8, 2024, 1:57:05 PM
Created by
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Dec 27, 2013, 7:32:09 PM
A=π((R)2-(r)2)
(R)Outer Radius
(r)Inner Radius
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e6cc225b-da27-11e2-8e97-bc764e04d25f

The Area of Circular Annulus calculator computes the are of an annulus (ring)

INSTRUCTIONS: Choose units and enter the following:

  • (R) Radius of Outer Circle
  • (r) Radius of Inner Circle

Area of Circular Annulus (A): The area is returned in square meters.  However, these can be automatically converted to compatible units via the pull-down menu.

The Math / Science

(Annulus) This formula provides the area of an annulus given the inner (r) and outer (R) radii.

/attachments/e6cc225b-da27-11e2-8e97-bc764e04d25f/Circleareaofanulus-illustration.png


Circle Calculators


This equation, Area of Circular Annulus, is used in 4 pages
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