The edge length of a cube is shown. what is the total suface area of this cube?
3m
1 answer:
Hi,
A cube has got 6 faces (having the same area), area of any face is l², where l is the lenght of any edge.
Total surface would be:
A = 6*l² = 6 * 3² m² = 54 m².
Green eyes.
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