Question 24
A cube has 6 faces. The object shown consists of 8 unit cubes. If every exterior face of the object, including its underside, is painted yellow, how many cubes have exactly 4 painted faces? Faces where cubes touch are not painted.
All exterior faces, including the underside, are painted; touching faces are not painted.
All exterior faces, including the underside, are painted; touching faces are not painted.