Name the quadrilaterals whose diagonals
(i) Bisect each other
(ii) Are perpendicular bisectors of each other
(iii) Are equal
(i) The diagonals of a parallelogram, rhombus, square, and rectangle bisect each other
(ii) The diagonals of a rhombus and square act as perpendicular bisectors
(iii) The diagonals of a rectangle and square are equal