Question

The total surface area of a cube is $900c{m}^2$. Find its volume.

Answer 1

Total surface area of a cube$=6a^2=900{cm}^2$

$\Rightarrow a^2=\frac{900}{6}=150$

$\Rightarrow a=12.25cm$

Volume of cube $=a^3$

$=(12.25{)}^3$

$\cong 1838.27c{m}^3$.