Answer:
see explanation
Step-by-step explanation:
The face of a cube is a square with area = s² ← s is the side length
The cube has 6 square faces , hence
surface area = 6 × ( [tex]\frac{3}{2}[/tex])²
= 6 × [tex]\frac{9}{4}[/tex] = [tex]\frac{54}{4}[/tex] = [tex]\frac{27}{2}[/tex] = 13.5 units²
