The circumradius of the triangle formed by (3, 7), (3, -2), (5, 7) is

The centroid of the triangle formed by (7, 4), (4, -6), (-5, 2) is

The centroid of the triangle formed by (7, 4), (4, -6), (-5, 2) is

The circumcentre of the triangle formed by (2,-5),(2,7),(4,7) is

The centroid of the triangle formed by (2, -5), (2, 7), (4, 7) is

The centroid of the triangle formed by (2, -5), (2, 7), (4, 7) is

The circumradius of the triangle formed by the points (2,-1,1),(1,-3,-5) ,(3,-4,-4) is

Incentre of the triangle formed by A(3,2),B(7,2),C(7,5) is

" The circumcentre of the triangle formed by the points (2,-5) , (2,7) , (4,7) is "

Find the circumcentre and circumradius of the triangle formed by the lines 3y - 4x-1 = 0, y -x -3 = 0 and x +y -5 = 0 .

If the centroid of the triangle formed by (a,1,3) ,(-2,b,-5) and (4,7,c) is the origin then (a,b,c) =