Question

What is the formula for finding out the coordinates of the circumcentre of a triangle?

Answer 1

let co-ordinate of vertices of triangleABC (x1, y1) , (x2, y2) and (x3 , y3) respectively.

circumcentre :- point of intersection of perpendicular bisector of sides of traingle is known as circumcentre .

circumcentre (C) =

{(x1sin2A+x2sin2B+x3sin2C)/(sin2A+sin2B+sin2C), (y1sin2A+y2sin2B+y3sin2/(sin2A+sin2B+sin2C)}

yeah !!! so tough formula, I think you can solve this easily by basic rule .
if vertices of ∆ are given , first find equations of two perpendicular bisector line , and then solve. solution is Circumcentre .