ΚΥΒΟΣ ΚΑΙ ΟΡΘΟΓΩΝΙΟ ΠΑΡΑΛΛΗΛΕΠΙΠΕΔΟ

 https://atheo.gr/66-%ce%bd%ce%b1-%cf%84%ce%bf-%ce%ba%ce%ac%ce%bd%cf%89-%cf%80%ce%b1%ce%ba%ce%ad%cf%84%ce%bf-%ce%ba%cf%8d%ce%b2%ce%bf%cf%82-%ce%ba%ce%b1%ce%b9-%ce%bf%cf%81%ce%b8%ce%bf%ce%b3%cf%8e%ce%bd%ce%b9%ce%bf/

http://users.sch.gr/parantoniou/site/matimatika/maths_kef9.html 

https://www.nctm.org/Classroom-Resources/Illuminations/Interactives/Cube-Nets/