Three vertices of a parallelogram `ABCD` are` A(3,-1,2), B(1,2,-4)` and `C(-1,1,2)`. Find the coordinates of the fourth Vertex

The vertices of a parallelogram ABCD are A(3,-1,2), B(1,2,-4) and C(-1,1,2). Find the 4th vertex.

Suppose that three consecutive vertices of a parallelogram ABCD are A (1,2,3), B(-1,-2,-1) and C(2,3,2).Find the co-ordinates of D

Suppose that three consective vertices of a parallelogram ABCD are A (1,2,3), B(-1,-2,-1) and C(2,3,2 ) Taking D (x,y,z) , find the mid point of AC and BD

Let A (1,-1,4), B(2,1,2) and C(1,-2,-3). Find vec(AB) .

The vertices of triangleABC are A(2,1), B(-3,5) and C(4,5). Write the coordinates of the midpoint of AC.

The coordinates of two opposite vertices of a parallelogram are '(4,5)' and '(1,3)'. What are the coordinates of the polnt of intersection of its diagonals?

The vertices of triangleABC are A(2,1), B(-3,5) and C(4,5). Find the equation of the median through the vertex B.

The vertices of the rectangle ABCD are A(-1, 0), B(2, 0), C(a, b) and D(-1, 4) Then, the length of the diagonal AC is

The coordinates of the vertices of a triangle are '(1,2),(2,3),(3,1)'. Find the coordinates of the centre of its circumcircle and the circumradius.

The coordinates of the vertices of a quadrilateral taken in order are '(2,1)', '(5,3),(8,7),(4,9)'. i) Find the coordinates of the midpoints of all four sides. ii) Prove that the quadrilateral got by joining these mid points is a parallelogram.