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## Radius of large circle of annulus given small circle radius and perimeter Solution

STEP 0: Pre-Calculation Summary
Formula Used
R = (P/(2*pi))-(r)
This formula uses 1 Constants, 2 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
perimeter of annulus - Perimeter of annulus is defined as the sum of outermost part of the annulus (Measured in Meter)
Radius of small circle - Radius of small circle is defined as the inner radius of the given polygon (Measured in Meter)
STEP 1: Convert Input(s) to Base Unit
perimeter of annulus: 20 Meter --> 20 Meter No Conversion Required
Radius of small circle: 2 Meter --> 2 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
R = (P/(2*pi))-(r) --> (20/(2*pi))-(2)
Evaluating ... ...
R = 1.18309886183791
STEP 3: Convert Result to Output's Unit
1.18309886183791 Meter --> No Conversion Required
1.18309886183791 Meter <-- Radius of large circle
(Calculation completed in 00.016 seconds)

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### Radius of large circle of annulus given small circle radius and perimeter Formula

R = (P/(2*pi))-(r)

## What is annulus?

In mathematics, an annulus (plural annuli or annuluses) is the region between two concentric circles. Informally, it is shaped like a ring or a hardware washer. The word "annulus" is borrowed from the Latin word anulus or annulus meaning 'little ring'. The adjectival form is annular (as in annular eclipse).The area of an annulus is the difference in the areas of the larger circle of radius R and the smaller one of radius r

## How to Calculate Radius of large circle of annulus given small circle radius and perimeter?

How to calculate Radius of large circle of annulus given small circle radius and perimeter using this online calculator? To use this online calculator for Radius of large circle of annulus given small circle radius and perimeter, enter perimeter of annulus (P) and Radius of small circle (r) and hit the calculate button. Here is how the Radius of large circle of annulus given small circle radius and perimeter calculation can be explained with given input values -> 1.183099 = (20/(2*pi))-(2).

### FAQ

What is Radius of large circle of annulus given small circle radius and perimeter?
The Radius of large circle of annulus given small circle radius and perimeter formula is defined as straight line from centre to the circumference of annulus, where radius_1= radius of large circle of annulus , radius_2 = radius of small circle of annulus and is represented as R = (P/(2*pi))-(r) or radius_of_large_circle = (perimeter of annulus/(2*pi))-(Radius of small circle). Perimeter of annulus is defined as the sum of outermost part of the annulus and Radius of small circle is defined as the inner radius of the given polygon.
How to calculate Radius of large circle of annulus given small circle radius and perimeter?
How many ways are there to calculate Radius of large circle?
In this formula, Radius of large circle uses perimeter of annulus and Radius of small circle. We can use 4 other way(s) to calculate the same, which is/are as follows -