What is the edge length of a cube with a volume of 8 cubic units?

Given, the volume of a cube = $8$ cubic units.

The edge length of a cube can be found by taking the cube root of its volume.

The edge length of a cube = $\sqrt[3]{\mathrm{volume} \mathrm{of} \mathrm{the} \mathrm{cube}}$

$=\sqrt[3]{8}=2$

Therefore, the edge length of a cube is 2 units.