Answer :
Lateral area is the total surface area. A cube has 6 faces.
Lateral area = 6x²
6x² = 144
x² = 144/6
x² = 24
x² = √24
x ≈ 4.899 km
Lateral area = 6x²
6x² = 144
x² = 144/6
x² = 24
x² = √24
x ≈ 4.899 km