The point of intersection of the internal bisecters of the angles of a triangle is called the incentre of the triangle.
The coordinates of the incentre of a triangle with vertices (x1, y1), (x2, y2) and (x3, y3) are
Where a,b,c are lengths of sides of triangle
The incentre of the triangle formed by (0,0), (a,0), (0,b) is
