Solution :-
cube length = 3.23 cm
volume = ?
Volume of cube = (edge)^3
                          Â
= (3.23 cm)^3
                          Â
= 33.7 cm^3
1 cm3 = 1 ml
therefore 33.7 cm3 * 1 ml / 1 cm3 = 33.7 ml
So the volume of cube = 33.7 ml
3 Sig fig are present in the volume.
Calculating the density of the cube
density = mass / volume
           Â
= 43.808 g / 33.7 ml
          Â
= 1.30 g /ml
Therefore the density of the cube is 1.30 g
/ml
Since the density of the cube is higher than 1 g / ml therefore
we can say that cube is made up of high density polyethylene.