Nka moderi yikinisho, inyubako zubatswe zaturutse mubwubatsi. Nta tegeko ryihariye ryuburyo bwabo bwo gukina. Umuntu wese arashobora gukina akurikije ibitekerezo n'ibitekerezo bye. Ifite kandi imiterere myinshi, harimo silinderi, cuboide, cubes, nubundi buryo bwibanze. Birumvikana, usibye t ...
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