The volume of cube is 729 cm3.Find itscsurface area
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volume of cube=a×a×a
729=a^3
9×9×9=a^3
so,
a=9 cm
CSA=4a^2
=4×9×9
=324cm^2
729=a^3
9×9×9=a^3
so,
a=9 cm
CSA=4a^2
=4×9×9
=324cm^2
Krish909:
csa=6a^2 is correct formula
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