This hard-level worksheet challenges second graders to combine 2D and 3D shape knowledge in trickier questions. Part A asks four multiple choice questions, including identifying which shape has exactly five sides, counting cube faces, and recognizing which 2D shape has all equal sides plus right angles. Part B follows with five fill-in-the-blank questions about triangles, hexagons, and shapes that have no corners or edges, like the sphere students saw earlier.