stereometria solid geometry 3 [vynechat] elementary geometry 2 [vynechat] elementárna geometria 2 [vynechat] matematika 2 [vynechat] secondary school curriculum 2 [vynechat] učivo stredných škôl 2 [vynechat] digitálna fotografia 1 [vynechat] dynamics 1 [vynechat] dynamika 1 [vynechat] machinery 1 [vynechat] námety, témy a motívy 1 [vynechat] plane geometry 1 [vynechat] planimetria 1 [vynechat] strojníctvo 1 [vynechat]