Find the point which is equidistant from the points (a,0,0),(0,b,0),(0,0,c) and (0,0,0),a,b and c being non-zero reals.

Find the point which is equidistant from the points (1,0,0), (0,2,0),(0,0,3) and (0,0,0).

Find the point in the XY-plane which is equidistant from the points (2,0,3),(0,3,2) and (0,0,1).

Find the co-ordinates of the point, which is equidistant from four points (0, 0, 0), (a, 0, 0), (0, b, 0) and (0, 0, c).

Evaluate : |(a,0,0,0),(0,b,0,0),(0,0,c,0),(0,0,0,d)|

True or false The points (a,0,0),(0,b,0) and (0,0,c) are collinear (abc ne 0) .

Find the equation of the plane containing the points (1,0,0),(0,2,0) and (0,0,3).

Find the distance between the point (2,3,6) and (0,0,0).

Find the lengths of the medians of the triangle A (0, 0, 6), B (0, 4, 0) and C (6, 0, 0).

Find the lenghts of the medians of the triangle with vertices A(0,0,6), B(0,4,0) and C(6,0,0)

If the point (2,0) ,(0,1) , ( 4,5) and ( 0,c) are concyclic, then the value of c is :