A crate with no lid is shaped like a cube with sides that are 0.8 m long. What is the surface area of the crate?
3.5 m²
3.2 m²
2.6 m²
2.9 m²
The surface area of a cube is calculated by finding the area of each of the six faces and adding them together.
Since each side of the crate is 0.8 meters long, the area of one face of the cube is 0.8m x 0.8m = 0.64m².
Since there are six faces, the total surface area of the crate is 6 x 0.64m² = 3.84m².
Therefore, the closest option is 3.5 m².