Mathematics, 13.06.2020 19:57 kayleighanne3462

Într-o cutie sunt 40 plăci de faianţă, o placă având forma unui pătrat cu latura 15 cm. Pentru faianţarea unui perete dreptunghiular s-au cumpărat 12 cutii cu faianţă, dar din ultima cutie nu s-au folosit 80 % din plăci. Ştiind că peretele are înălţimea 2,40 m, cu câţi cm este egală lungimea lui ?

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Într-o cutie sunt 40 plăci de faianţă, o placă având forma unui pătrat cu latura 15 cm. Pentru faian...

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