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A cube has faces. It has
1. a front face
2. a back face
3. a left face
4. a right face
5. a top face
6. a bottom face
Sometimes faces of cubes are called "sides", but
the proper name for a "side" is a "face".
Each of those faces is a square and all 6 of them are exactly alike.
So to find the area of just 1 face, divide 108 square feet by 6 and
get 18 square feet.
Edwin
