Akdu
Akdu (Asget: ikda) deg tawinest neɣ deg tsegla (takurt) neɣ deg tzunglayt d tigezzumin tusridin itteqqnen gar n snat n tẓunin deg twinest (nɣe tsegla neɣ tzunglayt), Tzerri-d seg wammas, S wakka ad yili d iseddi id izerrin seg wammas.
![](https://cdn.statically.io/img/upload.wikimedia.org/wikipedia/commons/7/78/Diameter.png)
Artagarayt n wekdu n twinest Yal tawinest tla (tesɛa) uṭṭun aragaray n yikda.
Azamul n wekdu
ẓregYekka-d seg usekkil Askindinav Ø neɣ tagrawt tilemt ∅.