Question

a unit of volume with dimensions 1 unit x 1 unit x 1 unit what is it

Answer 1

If the length, width and height are all the same, then it's a cube. The volume of a cube is the lwh (length*width*height). 1*1*1=1, so your answer is 1 unit³, or one cubic unit.

Answer 2

Your answer is on unit or one cubic unit