Question 17
Three jars of paint cover all faces of the cube in Figure 1. At least how many jars are needed to cover all faces of the solid in Figure 2?
Editorial convention: read the pictured solid as complete, without additional wholly hidden cubes. Use identical unit cubes and uniform paint coverage, include the underside, and count whole jars.
Editorial convention: read the pictured solid as complete, without additional wholly hidden cubes. Use identical unit cubes and uniform paint coverage, include the underside, and count whole jars.