Răspuns:
Explicație pas cu pas:
a) 8 cuburi identice cu muchia de 4 cm
=> o muchie are in componenta 2 cuburi (2³ = 8)=>
L = 2 x 4 cm = 8 cm
b) 125 de cuburi identice cu muchia de 1 cm.
=> o muchie are in componenta 5 cuburi (5³ = 125)=>
L = 5 x 1 cm = 5 cm
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