Rhombus is a parallelogram where
all sides are equal
i.e. AB = BC = CD = AD
In parallelogram
- Opposite sides are equal
 - Opposite angles are equal
 - Diagonals bisect each other
 - Sum of adjacent angles is 180°
 
Properties of Rhombus:
Since it is a parallelogram,
it will have all its properties
 
 
Other properties are
Diagonals bisect each other at right angles
AO = CO and BO = DO
and
∠ AOB = 90°
∠ BOC = 90°
∠ COD = 90°
∠ AOD = 90°