The front face of the cube is a 2 by 2 square, so its area is 2×2 or 4. The back face of the cube is a 2 by 2 square, so its area is 2×2 or 4. The left face of the cube is a 2 by 2 square, so its area is 2×2 or 4. The right face of the cube is a 2 by 2 square, so its area is 2×2 or 4. The top face of the cube is a 2 by 2 square, so its area is 2×2 or 4. The bottom face of the cube is a 2 by 2 square, so its area is 2×2 or 4. Add all those areas of the 6 faces up and you get 4+4+4+4+4+4 = 24. Edwin