Solution :
Circumradius Formula (R) = \(abc\over 4\Delta\)
where R = radius of circumcircle described about a given triangle with sides a, b, c.
\(\Delta\) = \(\sqrt{s(s – a)(s – b)(s – c)}\)
and s = \(a + b + c\over 2\)
where a, b and c are the sides of triangle.
