On a recent Saturday at Einstein’s Workshop, a maker space outside Boston, boisterous kids were busy with Legos, mini motors and gears, magnetic tiles, pipe cleaners, posterboard, markers and tape. In ...
A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...
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