Which of the following quadrilaterals has/have equal length of diagonals?
i) Rhombus
ii) Rectangle
iii) Square
iv) Parallelogram
Rhombus has unequal diagonals which are perpendicular bisectors.
Square has equal diagonals which are perpendicular bisectors.
Rectangle has equal diagonals.
Parallelogram has unequal diagonals, and bisect each other.