ΕΜΒΑΔΟ ΤΡΙΓΩΝΟΥ

 https://atheo.gr/63-%ce%b1%ce%b4%cf%85%ce%bd%ce%ac%cf%84%ce%b9%cf%83%ce%b1-%ce%bc%ce%b9%cf%83%cf%8c%cf%82-%ce%ad%ce%bc%ce%b5%ce%b9%ce%bd%ce%b1-%ce%b2%cf%81%ce%af%cf%83%ce%ba%cf%89-%cf%84%ce%bf-%ce%b5%ce%bc%ce%b2/

ΤΑΝΚΡΑΜ

http://photodentro.edu.gr/v/item/ds/8521/4702 

http://photodentro.edu.gr/v/item/ds/8521/5623