# What Are 4 Sided Shapes Called Again?

I apologise for the really basic question. This didn't really fit on any other StackExchange website so the Maths one was the closest one where I could ask.

Really Basic Question- What are 4 sided shapes called again?

Like how triangles are 3 sided shapes, octagons are 8 sided shapes, ... What are the 4 sided ones called then?

-
Kinda weird - triangle, quadrilateral, pentagon, ... In Germany, we just say Dreieck, Viereck, Fünfeck (three-edge, four-edge, five-edge) ;) – Dario Sep 22 '10 at 12:15
I Am Not A German -- but shouldn't that be three-corner, four-corner, five-corner? – TonyK Sep 22 '10 at 14:41
@TonyK: Why? For any shape where each corner (or vertex) meets exactly 2 edges, you're going to have the same number of edges as the number of corners, so it doesn't matter which one you count. Even this question is termed in "number of sides" which are edges. – Dan Sep 22 '10 at 16:06
Um...'Eck' means 'corner'. – TonyK Sep 22 '10 at 19:59

Wait, never mind. It's quadrilateral. :)

-
-