please tell me the properties of quadrilaterals

Following are the properties-

Square-

A square is a regular quadrilateral.
All angles are equal (90°).
All sides are of equal length.
Opposite sides are parallel.
The diagonals bisect each other at 90°.
The diagonals are equal in length.

Rhombus-

Diagonally opposite angles are equal.
All sides are of equal lengths.
Opposite sides are parallel.
The diagonals bisect each other at 90°

Rectangle-

All angles are equal (90°).
Opposite sides are of equal length.
The diagonals are equal in length.

Parallelogram-

Diagonally opposite angles are equal.
Opposite sides are of equal length.
Opposite sides are parallel.
The diagonals bisect each other.

kite-

Two pairs of sides are of equal length.
One pair of diagonally opposite angles is equal.
Only one diagonal is bisected by the other.
The diagonals cross at 90°