Question

If the perimeter of one of the es of a cube is
40 cm, then its total surface are is
1 point
100 cm2
600 cm2
800 cm2
6000 cm2​

Answer 1

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solution :-

perimeter of one face =4a

=>4a=40

=>a=10 cm

volume =>a³=10³=>1000³

total surface area is 100cm²