Raio Circunscrito
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
R
About this calculator
The circumradius calculator is a useful tool for calculating the distance from the circumcenter to a vertex of any triangle.
This formula is valid for any triangle, whether it is isosceles, scalene or any other type of triangle.
The circumradius is fundamental in geometry, as it helps to determine the relationship between the sides and angles of a triangle.
The formula R = a/(2 sin A) is simple and easy to use, and this calculator allows you to quickly find the value of the circumradius.
Frequently asked questions
When to use this calculator?
This calculator is useful when you need to find the circumradius of a triangle, whether to solve geometry problems or to apply concepts in other areas of mathematics.
What is the formula to calculate the circumradius?
The formula to calculate the circumradius is R = a/(2 sin A), where 'a' is the measure of the side opposite to the angle A and 'sin A' is the sine of the angle A.
Can I use this calculator for irregular triangles?
Yes, this calculator is capable of calculating the circumradius of any triangle, whether it is regular or irregular.
Is this calculator free?
Yes, this calculator is free and can be used by anyone.