A kite is a planar convex quadrilateral consisting of two adjacent sides of length 
and the other two sides of length 
.
The rhombus is a special case of the kite, and the lozenge is a special case of the rhombus.
The area of a kite is given by
 |
(1) |
where
are the lengths of the polygon diagonals (which are perpendicular).
The 120-90-60-90 kite with edge ratios 
is the basis for the polyomino-like
objects known as polykites.
"Kite" is also the name given to the Penrose tile illustrated above.
See also
Dart, Kite Graph, Krackhardt Kite, Lozenge, Parallelogram, Penrose Tiles, Polykite, Quadrilateral, Rhombus
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References
Harris, J. W. and Stocker, H. "Kite." ยง3.6.9 in Handbook of Mathematics and Computational Science. New York: Springer-Verlag, p. 86, 1998.
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Cite this as:
Weisstein, Eric W. "Kite." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Kite.html