We use the formula for getting the volume of cube. Which is V = a^3
If we have a 5 inch edge and the area of a square is A=s^2 then A=5^2
5^2 = 5 * 5 = 25
Now we have our area.
Plug it into the formula. V = 25^3 then V = 25 * 25 * 25
And the final answer is V = 15625
