Is there a rule for naming quadrilaterals in English? What I am expected to know about are: square, rhombus, rectangle, parallelogram, trapezium, kite. But how do we name other quadrilaterals?

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like what? give an example of a quadrilateral you want to name –  user31280 Oct 29 '12 at 11:00
@F'Ola Yinka not a specific quadrilateral ,but i am looking for rule to name any quadrilateral . –  sed Oct 29 '12 at 11:02
@sed Well, I doubt if there is a systematic nomenclature. –  user43081 Oct 29 '12 at 11:03
I covered a similar question, here: math.stackexchange.com/q/174740/31475 –  Arkamis Oct 29 '12 at 19:55

You've left out at least one named type of quadrilateral, the cyclic quadrilateral. See here for information. Many more are named here, including quite a few I have never heard of.

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And that list does not include a dart. –  Henry Oct 29 '12 at 13:38

There is also a diamond, which is a square rotated through 45$^\circ$, but again, the nomenclature here obscures as much as it reveals. As other posters have pointed out "quadrilateral" captures the essential properties of the object well enough that a more specific taxonomy would be unhelpful.

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I would have added that as a comment but I haven't the necessary reputation.... –  Simon Hayward Oct 29 '12 at 11:42
Thankyou, looks like I'm away now :) –  Simon Hayward Oct 29 '12 at 12:54