The mass of the cube is 76.8 g, the area of the entire surface of the cube is 96 sq. Cm. What material is the cube made of?

Given: m = 76.8 g = 0.0768 kg Spov = 96 cm2 = 0.0096 m2 cube
Find: Material
Decision:
cube => 6 faces => 0.0096 m2 / 6 = 0.0016 m2 (area of one face) Sface = a ^ 2, where a is the edge of the square a ^ 2 = 0.0016 => a = 0.04 (m2 )
Let’s find the volume: a ^ 3, since a cube is given => V = (0.04) ^ 3 = 0.000064 m3
Let’s find the density: p = m / V p = 0.0768 kg / 0.000064 m3 = 1200 kg / m3
Answer: plexiglass