Los Angeles Math Circle

9/30 -- Early Elementary Circle: Reconstructing 3D solids from 2D projections (Melinda Speckman)

A projection for the purpose of this worksheet is a 2D picture that shows us the "shape" of a side of a cube. In this handout, students will be given projections of the top, front, and left side of a solid that fits in the given dimensions of a cube. Can they identify the correct solid from this information? Or, is there more than one possible solution?