Kite
A quadrilateral with two distinct pairs of equal adjacent sides.
Area
The area of a kite can be calculated in various ways.
Area
Peremeter
A kite can become a rhombus
In the special case where all 4 sides are the same length, the kite satisfies the definition of arhombus. A rhombus in turn can become a square if its interior angles are 90°.
Concave kites
If either of the end (unequal) angles is greater than 180°, the kite becomes concave. Although it no longer looks like a kite, it still satisfies all the properties of a kite.
Animation