Theory:

A quadrilateral with two pairs of equal adjacent sides and unequal opposite sides is called a kite.
Now we are going to define a kite \(ABCD\) is a quadrilateral having two pairs of equal adjacent sides and unequal opposite sides.
 
Theory_2_1_2.png
 
Thus, if \(ABCD\) is a kite, then \(AB = AD\) and \(BC = CD\).
In a kite, the following properties are true:
  1. The sum of all the four angles of the kite is equal to \(360°\).
  2. A kite has two pairs of equal adjacent sides.
  3. A kite has unequal opposite sides.
  4. The diagonals of kite perpendicular bisect of each other.
  5. One of the diagonals bisects the other diagonal.
  6. In the figure, \(∠B =∠D\) but \(∠A  ∠C\).