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Un cub are volumul de 1000cm. Aflati aria suprafetei totale a cubului

Răspuns :

V=1000cm
v=l³
V=10³
=> l=10 cm
Atotala=6l²
A=6 x 10 x 10
A= 600 cm²
V= [tex] l^{3} [/tex]
1000[tex] cm^{3} [/tex] = [tex] l^{3} [/tex]=>[tex] 10^{3} [/tex] = [tex] l^{3} [/tex]
atunci l = 10 cm
[tex] A_{t} [/tex] = [tex]6* 10^{2} [/tex] => [tex] A_{t} [/tex] = 6 l^{2} [/tex] =>[tex] A_{t} [/tex]=6*100 =>A_[tex] A_{t} =600 cm^{2} [/tex]