Consider what happens when a vertex of one tetrahedron pierces the face of a second tetrahedron to form a new, more complicated polyhedron. In the resulting geometric form, one triangular face has a ...

A solid surrounded by four or more planes is called "polyhedron"Especially, all sides are composed of congruent regular polygons"Regular polyhedron"Is a solid with the most beautiful symmetry, it is ...

Getting your Trinity Audio player ready... Clark Richert has long had a way of using art to model complex ideas about math and science. He’s been working out methods for employing line and color to ...