Question

The total surface area of a cube is $1350sq.m$. Find its volume.

Answer 1

We have

$Tsa$ of Cube $=6a^2$

$1350=6a^2$

$\frac{1350}{6}=a^2$

$225=a^2$

$\sqrt{225}=a$

$a=\sqrt{225}$

$A=15cm$

then volume of cube $=a^3=153$

$3375c{m}^2$