A(6, 1), B(8, 2) and C(9, 4) are the vertices of a parallelogram ABCD. If E is the midpoint of D...

A(6,1) , B (8,2) and C (9,4) are three vertices of a parallelogram ABCD . If E is the mid - point of DC , then find the area of triangle ADE.

A(-2,2),B(8,2) and C(4,-4) are the vertice of a parallelogram ABCD. By plotting the given points on a graph paper, find the co-ordinates of the fourth vertex D.

If A(1,2),B(4,3) and C(6,6) are the three vertices of a parallelogram ABCD, find the coordinates of fourth vertex D.

If A(1,2),B(4,3) and C(6,6) are the three vertices of a parallelogram ABCD,find the coordinates of the fourth vertex D .

Show that the points A(3, 1), B(0, -2), C(1, 1) and D(4, 4) are the vertices of a parallelogram ABCD.

The points A(4, 5, 10), B(2, 3, 4) and C(1, 2, -1) are three vertices of a parallelogram ABCD, then

Points A(3, 1), B(5, 1), C(a, b) and D(4, 3) are vertices of a parallelogram ABCD. Find the values of a and b.