If `A(2,0),B(0,2)a n dC(0,7)` are three vertices, thaken in order, of an isosceles trapezium `A B C D` in which `A B||D Cdot` find the coordinates of `Ddot`

If A(2,0),B(0,2) and C(0,7) are three vertices,thaken in order of an isosceles trapezium ABCD in which AB|DC. find the coordinates of D.

Of (-2,-1),B(a,0),C(4,b) and D(1,2) are the vertices f a parallelogram,find the values of a and b.

In Fig.85, A B C D\ a n d\ A C B Ddot Find the value of x , y , zdot

The three vertices of a parallelogram ABCD taken in order are A(3, -4), B(-1, -3) and C(-6, 2). Find the coordinates of the fourth vertex D.

If A(-2,-1)B(a,0)C(4,b) and D(1,2) are vertices of a parallelogram find the values of a and b

If A(-3,-2,0),B(3,-3,1) and C(5,0,2) are three successive vertices of parallelogram ABCD, then its fourth vertex D is

A (-2,-1) , B (1,0), C (4,3) and D (1,2) are the vertices of square ABCD then Using midpoint formula , find the coordinates of midpoints of join of B and D .