A square-based pyramid has five vertices. The number of edges of a pyramid is twice the number of edges of the base. A triangle-based pyramid has six edges, 3 × 2 = 6.

Dumped into theaters with little fanfare, "The Pyramid" didn't screen in advance for critics -- not a good sign, especially for a film whose producers include French horror-meister Alexandre Aja ...

The most common pyramids are square-based, rectangular-based and triangular-based pyramids. ... Find the area of this square-based pyramid: ...

“Bille” is the first-ever monostable tetrahedron, or a pyramid-like shape with four triangular faces that has one stable ...