Răspunsuri

2014-05-17T15:11:22+03:00
Diagonala = l \sqrt{3} --> l =7 cm --> V  l^{3} = 7*7*7=49*7=343 cm cubi
2014-05-17T15:11:29+03:00
D=l√3
d=7√3   ⇒l=7√3/√3  l=7

V=l³=7³=343