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## Credits

St Joseph's College (SJC), Bengaluru
Mona Gladys has created this Calculator and 1000+ more calculators!
Walchand College of Engineering (WCE), Sangli
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STEP 0: Pre-Calculation Summary
Formula Used
R = b+r
This formula uses 2 Variables
Variables Used
Breadth - Breadth is the measurement or extent of something from side to side. (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
Breadth: 2 Meter --> 2 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 = b+r --> 2+2
Evaluating ... ...
R = 4
STEP 3: Convert Result to Output's Unit
4 Meter --> No Conversion Required
4 Meter <-- Radius of large circle
(Calculation completed in 00.016 seconds)

## < 4 Radius of the large circle of Annulus Calculators

Radius of large circle of annulus given small circle radius and area
Radius of large circle of annulus given small circle radius and perimeter
Radius of large circle of annulus given small circle radius and longest interval

R = b+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

### FAQ

How many ways are there to calculate Radius of large circle?
In this formula, Radius of large circle uses Breadth and Radius of small circle. We can use 4 other way(s) to calculate the same, which is/are as follows -