Click to see a step-by-step slideshow. STEP 1: On each of the nets, colour in the faces that will make one corner so you can count them easily. STEP 3: Three regular triangles on a corner make a ...

Alicia Boole Stott, the third daughter of mathematician George Boole, is probably best known for establishing the term "polytope" for a convex solid in four dimensions. Alicia was also a long time ...

A polygon is regular if it is uniform and its faces are all alike. The regular convex polyhedra are the five Platonic solids, which have been known since classical Greece. The ancient Greek ...

THERE are five Platonic solids of perfect symmetry. Three, the tetrahedron, octahedron and icosahedron, have triangular faces. A fourth, the cube, has square faces. The fifth, the dodecahedron, has ...