Question

ABCDA'B'C'D'-paralelipiped dreptunghic
AB=280cm.
BC=210cm.
AA'=50cm.
Daca se introduc 2058 l de apa la ce inaltime se ridica apa in vas? exprimata in dm.

Answer 1

AB=280cm=28dm
BC=210cm=21dm
AA'=50cm=5dm
Volum total = 28*21*5 = 2940 dm³

Volum apa = 2058 l = 2058 dm³
Volum apa = 28*21*x
x fiind inaltimea pana la cat se ridica apa
28*21*x=2058 => x=2058/(28*21) => x=2058/588=3,5dm

Deci apa se ridica pana la 3,5 dm din totalul de 5dm