Avtor: Tamara Jovičić

VIRI: https://www.os-franaerjavca.si/files/2020/03/9c-4skupina-MAT-26.3.2020.pdf https://edutorij-admin-api.carnet.hr/storage/extracted/d2d61772-7e7a-4f5b-98f9-6bbb5d5d13ca/html/10670_Piramide.html https://si.openprof.com/wb/krogla_za_osnovno_%C5%A1olo?ch=2355 https://si.openprof.com/wb/valj?ch=137 http://www.educa.fmf.uni-lj.si/izodel/sola/2002/dira/mlakar/stran/stozec.htm http://www.educa.fmf.uni-lj.si/izodel/sola/2002/dira/mlakar/stran/stozec.htm https://eucbeniki.sio.si/mat4/78/index3.html https://eucbeniki.sio.si/mat4/75/index3.html