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Geometry Difficulty 1.4 Junior Find the answer Canada

The length of each edge of a cube is 1 cm. The surface area of the cube, in cm $^2$ , is

Pick one

Solution

Each face of a cube is a square. The dimensions of each face of the cube are 1 cm by 1 cm. Thus, the area of each face of the cube is $1\times1=1$ cm $^2$ .
Since a cube has 6 identical faces, the surface area of the cube is $6\times1=6$ cm $^2$ .

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.