Q1 of 24 Page 236

If the volume of a cube is 3√3 a3 then the total surface area of the cube is

Given, ..(i)


Formula: Volume of the cube = s3 ..(ii)


where s = side of the cube


Equating equation (i) and (ii)




Total surface area of cube =


where s = side of the cube


Here s = √3 a


⇒


= 18a2


So, the total surface area of a cube is 18 a2 square units.


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