Area of a cube

Calculate the surface area of a cube if its volume is equal to 729 cubic meters.

Correct result:

S =  486 m2

Solution:

V=729 m3  V=a3 a=V3=7293=9 m S1=a2=92=81 m2  S=6⋅ S1=6⋅ 81=486 m2

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