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calculati volumul unui cub cu muchia de:
a) 7 dm
b)2,5 dm
c)1,2 dm


Răspuns :

Vcub=7 la puterea a 3=343
Vcub=2,5 la puterea a 3=15,625
Vcub =1,2 la puterea a 3=1,728
a) l^3=7^3=343 dm cubi
b) l^3=25^3=15625cm cubi =>15,625 dm cubi
c) l^3=12^3=1728 cm cubi =>1,728 dm cubi