If the diagonals of a quadrilateral bisect each other at right angles then the figure is a
(a) trapezium
(b) parallelogram
(c) rectangle
(d) rhombus
The diagonals do not necessarily intersect at right angles in a
(a) parallelogram
(b) rectangle
(c) rhombus
(d) kite
If a diagonal of a parallelogram bisects one of its angles, then it is a rhombus.