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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

### This page exists due to the efforts of the following people:

#### Anton

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

The calculator determines radius and having a radius, area of the circumcircle, area of the triangle, and area ratio - just for reference

#### Circumcircle of a triangle

Digits after the decimal point: 2