Question

plz solve this only Q6​

Answer 1

Answer:

SA of cube = 6a^2

486 = 6a^2

a^2 = 81

a = 9

So, Volume = a^3

a^3 = 9^3 = 729 cm^3

HOPE MY ANSWER HELPED!!!

Answer 2

Answer:

$729 {cm}^{3}$

Step-by-step explanation:

Given: Surface area of cubical box = 486 sq.cm

To find : Volume of box

$Surface \: area \: of \: Cube = 6 {l}^{2}$

$486 = 6 {l}^{2}$

${l}^{2} = \frac{486}{6} = 81$

$l = \sqrt{81} = 9cm$

$Volume \: of \: cube \: = {l}^{3}$

$Volume = {9}^{3} = 729 {cm}^{3}$

Therefore Volume of cubical box is 729 cu.cm