Answer:
[tex]\sf \dfrac{64}{343} \ cubic \ yard[/tex]
Step-by-step explanation:
[tex]\sf \boxed{\bf Volume \ of \ cube =a^3}[/tex]
Here, a is the edge of the cube.
[tex]\sf a =\dfrac{4}{7} \ yard[/tex]
[tex]\sf Volume \ of \ cube = \dfrac{4}{7}*\dfrac{4}{7}*\dfrac{4}{7}[/tex]
[tex]\sf =\dfrac{64}{343} \ cubic \ yard[/tex]