Question

O cutie in forma de paralelipiped dreptunghic are dimensiunile de 10 dm 40 cm si 18 dm. Cate cuburi cu muchia de 1 dm incap in cutie?

Answer 1

$V_{paralelipiped}$=L*l*h=10*4*18= 720 $dm^{2}$

$V_{cub}$=$l^{2}$=$1^{2}$=1 $dm^{2}$

nr de cuburi ce incap in cutie = $\frac{ V_{paralelipiped} }{ V_{cub} }$=$\frac{720}{1}$=720 de cuburi

Answer 2

Volumul paralelipiped : L*l*h
 1.Transformam cm in dm
       40 cm = 4 dm
V paralelipiped =10*4*18
                        =720 dm => 720 cuburi
 V cub =l la puterea 3 ( scz ca am uitat sa scriu ) si dupa imparteai volumul parl la volum cub