Question 22
Each pictured solid is built from identical unit cubes. Its bottom layer contains eight cubes, and the upper-layer arrangement is shown. Peter wants to paint the exposed outside faces. Which solid requires the most paint?
Use the complete 2×4 bottom layer and the upper cubes visible in each source option. Equal paint coverage per unit exposed area is assumed.
Use the complete 2×4 bottom layer and the upper cubes visible in each source option. Equal paint coverage per unit exposed area is assumed.
