Each side of the Great Pyramid rises at an angle of 51.5 degrees to the top. Not only that, each of the sides are aligned almost exactly with true north, south, east, and west. For a pyramid to ...

For centuries, the Great Pyramid stood as the last remaining wonder of the ancient world, with its four triangular sides symbolizing the simplicity and elegance of ancient Egyptian engineering.

A 3D shape with regular polygonal faces, meeting at equal angles, is a platonic solid. There are five platonic solids, the tetrahedron, ... A triangle-based pyramid has six edges, 3 × 2 = 6.