## What is the Formula for Circumradius ?

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.