Question

daca un vas in forma de cub are aria unei fete de 900cm,atunci capacitatea vasului este:
A)30l B)90l C)45l D)27l

Answer 1

[tex]A patrat= l^{2} = 900 =\ \textgreater \ l= \sqrt{900} =\ \textgreater \ l= 30 (cm) V cub= l^{3} = 30^{3}= 27000 (cm ^{3} ) = 27 (dm ^{3})= 27 l Raspuns: D) 27 l [/tex]