Question

The volume of a cube is $729{\text{cm}}^3$. Find its edge.

Answer 1

Formula for volume of cube is given by $V=a^3$ where $a$ is edge of the cube.
Given,

volume $=729c{m}^3$
$⟹a^3=729$
$a^3=9\times 9\times 9$
$\therefore a=9cm$