Question

the total surface area of cube 486cm square find its volume

Answer 1

Heya Frnd .........☺

$tsa \: of \: cube \: = \: 6 {s}^{2}$

$= > \: 486 = 6 {s}^{2}$

$= > \sqrt{ \frac{486}{6} } = s$

$= > \: s = \: 9 \: cm$

NOW,

$vol. \: of \: cube \: = \: {s}^{3}$

$= > \: {9}^{3}$

$= > \: 729 {cm}^{3} \: ..........ans$

_________☺☺☺_________

$hope \: it \: will \: help \: u \: ........$

Answer 2

heyaaaaa....

total surface area of a cube = 6a^2=486
a^2=486/6
a=√81
a=9cm

volume of cube=a^3.
=729cm^3

hope this helps