the length of each edge = 4m
Explanation:
Volume = 64m³
Volume of a cube = length³
if length = s
v = s³
64 = s³
Cube root both sides:
[tex]\begin{gathered} \sqrt[3]{64}\text{ = }\sqrt[3]{s^3} \\ 4\text{ = s} \end{gathered}[/tex]Therefore, the length of each edge = 4m.