Answer :
V=Length*Height*Depth
Length=1 unit
Height=1 unit
Depth=1 unit
Therefore:
V= (1 unit)*(1 unit)*(1 unit)=1 unit³
Length=1 unit
Height=1 unit
Depth=1 unit
Therefore:
V= (1 unit)*(1 unit)*(1 unit)=1 unit³