=={{-de-}}==
{{-sost-|de}}
{{De-decl-sost
|n_s=das Viereck|n_p=die [[Vierecke]]
|g_s=des Viereck(e)s|g_p=der Vierecke
|d_s=dem Viereck|d_p=den Vierecken
|a_s=das Viereck|a_p=die Vierecke}}
{{Pn}} ''n''
#{{Term|geometria|de}} [[quadrilatero]]
#{{Pop}} [[quadrato]]

{{-sill-}}
;Vier | eck
{{-pron-}}
{{IPA|/ˈfiːɐ̯ˌʔɛk/}}
{{Audio|De-Viereck.ogg}}
{{-etim-}}
[[parola composta]] dal numero ''[[vier]]'' + ''[[Eck]]'' "angolo"
{{-ipon-}}
*[[Quadrat]]
{{-ref-}}
*{{Fonte|hode}}
*{{Fonte|dwds}}