The points A(a,0), B(0,b), C(c,0) and D(0,d) are such that ac=bd and a,b,c,d are all non zero. Then the points (a) form a parallelogram (b) do not lie on a circle © form a trapezium (d) are concyclic
The points A(a,0), B(0,b), C(c,0) and D(0,d) are such that ac=bd and a,b,c,d are all non zero. Then the points
(a) form a parallelogram (b) do not lie on a circle © form a trapezium (d) are concyclic