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# Circumcircle of a triangle

This online calculator determines the radius and area of the circumcircle of a triangle given the three sides

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 TimurArticle : Circumcircle of a triangle - Author, Translator ru - enCalculator : Circumcircle of a triangle - Author, Translator ru - en

Yet another triangle calculator, for those who needed radius of triangle circumcircle.
Radius can be found like this:
$R = \frac {abc}{4S}$
where S, area of triangle, can be found using Hero's formula

Calculator determines radius, and having radius, area of circumcircle, area of triange and area ratio - just for reference

### Circumcircle of a triangle

Digits after the decimal point: 2