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Objem akvaria v tvare kvadra je 280 litrov.aka je výška akvaria,ak jeho pôdorys ma rozmery 100 cm×40 cm?
Akvárium ma rozmery 40 cm,40cm a 50 cm.Voda obsahuje 45 mm od horného oktaja.Norbert kúpil rybičky a keď ich vložil do akvária,hladina stúpla o 0,5 mm.Aky je objem nových rybiciek?
Naša pracovná ma rozmery 5m×4,5m a výšku 2,5m.Kolko bude stáť jej vymaľovanie,ak liter farby stojí 3,50 eur a maliar si za prácu pýta 1,20 za 1 m2 maľovania?Asi bude treba vymaľovať dvakrát.
Kvetinac tvaru kvadra ma vonkajšie rozmery:dĺžka 1,25m,šírka 10 cm a výška 11 cm.Hrubka dosiek je 0,8 cm.Kolko litrov zeminy treba na jeho zaplnené 1 cm pod horny okraj?Akú plochu musíme natrieť,ak…
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