# 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.