The mid-point of the sides of a `DeltaABC` are D(6,1) ,E(3,5) and F(-1,-2) then the coordinates of the vertex opposite to D are

If the coordinates of the mid-points of the sides of a triangle are (1,2)(0,-1)a n d(2,-1)dot Find the coordinate of its vertices.

Mid points of sides at DeltaABC are (-2, 3, 5), (4, -1, 7) and (6, 5, 3). Then find coordinates of the verticies A, B and C.

If the vertex of a triangle is (1,1) and the the mid - points of two sides through this vetex are (-1,2) and (3,2) , them find the coordinates of the centroid of the triangle .

5.a The co-ordinates of the mid-points of the sides of a triangle ABC a re D(2,1),E(5,3) and F(3,7). Find the length and equation of its sides.

The coordinates of the mid points of sides AB, BC and CA of ABC are D(1,2,-3),E(3,0,1) and F(-1,1,-4) respectively.Write the coordinates of its centroid.