Ok, say I have many pentagons. <BR><BR>I want to build an orb or sphere or whatever a 3 dimensional ball out of pentagons.<BR><BR>Is there a predetermined limit to the # of pentagon shaped pieces I ...
Our universe appears flat—but this observation still leaves plenty of options for its true shape. In fact, our cosmos could resemble a donut ...
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 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results