Let the points A(3,0),B(2,0),C(0,2)&D(0,a), be the vertices of a cyclic quadrilateral taken in order.Find the value of a

If the points A(6,1),B(8,2),C(9,4) and D(p,3 ) are the vertices of a parallelogram,taken in order,find the value of p.

Points A(4,-1) , B (6,0),C(7,2) and D(5,1) are the vertices of the following quadrilateral then the quadrilateral is -

Show that A(3, 2), B(0, 5), C(-3, 2) and D(0, -1) are the vertices of a square.

Show that the points A(1,0),B(5,3),C(2,7) and D(-2,4) are the vertices of a parallelogram.

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

The points A(2,0),B(9,1),C(11,6) and D(4,4) are the vertices of a quadrilateral ABCD Determine whether ABCD is a rhombus or not.

The points A(2,0),quad B(9,1),C(11,6) and D(4,4) are the vertices of a quadrilateral ABCD. Determine whether ABCD is a rhombus or not.

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