## kite
cyte,
may in turn derive from an early German name for an owl. A non-convex kite is often called a dart, a term used by Roger Penrose in his proof on a non-periodic tiling of the plane (see also Penrose
tiling). Proclus referred to this shape as a "four-sided triangle" and
spoke of it as a geometric paradox. John Conway has pointed out that there
is no special name for a quadrilateral that has two pairs of equal sides
that, unlike in the case of a kite, are not parallel sides. He proposed
the name strombus for such a figure, from the Greek for
a spinning top.## Related category• POLYGONS | |||||||

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