Question

the volume of a cube is 512cm cu.find its surface area

Answer 1

HEYA!!!

Given,

volume of cube =
${a}^{3} = 512 \\ a = \sqrt[3]{512} \\ a = 8$
TSA of cube =
$= 6 {a}^{2} \\ = 6 \times {8}^{2} \\ = 6 \times 64 \\ = 384{cm}^{2}$

HOPE THIS HELPS U. . . @MP#MAHABOOBPASHA#..

Answer 2

hello Frnd

As we know that

$volume \: of \: cube \: = {a}^{3}$
here Volume of cube is given = 512 cm^3

$> > > > > 512 = {a}^{3}$
here we will calculate "a ( side )" by computing cube root of 512

$> > > > a = \sqrt[3]{512}$
here a = 8

Now We have to calculate Surface area of cube

$surface \: area \: of \: cube \: = 6{a}^{2}$
$= 6({8}^{2} )$
$= 6 \times 64 \\ = 384 \\ \\ hence \: the \: surface \: \: area \: = 384 \: {cm}^{2}$

hope it helps
#jerri