Na confecção de embalagens, muitas vezes é usada a forma do paralelepípedo ou bloco retangular. Isso se deve, principalmente, à facilidade de armazenamento e transporte. Veja alguns exemplos:[br][img]https://cdn.geogebra.org/material/MVGCAAishKwUHoAt9iaKPbqiTM1UgSFE/material-B6bCFGCJ.png[/img][img]https://cdn.geogebra.org/material/8TvS4URBrMnzbCLgHxOgecaYgLseo2g0/material-nznSUsuW.png[/img][br]Essas caixas têm formato de [b]blocos retangulares.[/b]

Todo sólido geométrico tem 3 dimensões e, por isso, é chamado de figura tridimensional. Observe as três dimensões do bloco retangular. [br][img 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[/img][br]