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Postby papernuke » Mon Dec 03, 2007 12:47 am

In 2D geometry, a polygon with three sides is a triange. 4 sides is a square, 5 pentagon, 6 hexagon etc. etc. Shouldnt the square be called a tessagon because it has four sides and is a polygon? What is the "numerical" part of "square"? for example pentagon's "numerical" part is "penta".
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Postby zero » Mon Dec 03, 2007 6:03 am

Don't forget "trigon!"

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Re: square/tessagon

Postby Keiji » Mon Dec 03, 2007 8:10 am

papernuke wrote:Shouldnt the square be called a tessagon

No, it should be called a tetragon.
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Postby wendy » Mon Dec 03, 2007 9:24 am

sQUARe and QUARter.

Seriously, you can use either quadralateral, or even tetragon. But square is a specific instance of these, being equilateral + equiangular.

PG also admits 'tetralatron' (4-2patches), and *prismahedron 'patch formed by prism-product', beside *tegmahedron (patch by tegum-product).
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