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Da u coroana!!!! Urgeeentt!!!! un cub are suma muchiilor cu 72 cm.Aflati d,Al,At,V

Răspuns :

d =l√3⇒ d=72√3 cm
Al= 4·Ab⇒ Al= 4·72²=20736 cm²
At=6·Ab⇒At=6·72²=31104 cm²
V= l³ =73³=389017 cm³