# Area of a triangle (related to the circumradius and two of its altitudes)

## Description

A circumscribed circle or circumcircle of a triangle is a circle which passes through all the vertices of the triangle. Its radius is called the circumradius.

Related formulas## Variables

S | Area of the triangle (m^{2}) |

R | Circumradius (m) |

h_{b} | Altitude opposite to side b (m) |

h_{c} | Altitude opposite to side c (m) |

a | Side opposite to angle A (m) |