Step-by-step explanation:
Solution,
Let the length of edge be L,
Now,
Volume of cube=8
L³=8
We know that 8 is the cube of 2 i.e, 2³=8, therefore
L³=2³
Here, the cubes of both sides cancel each other and we can write
L= 2 feet
So, the length of the edge is 2 feet.
