|This word has several distinct uses based on its geometrical shape:|
Mathematical: A three dimensional triangular shape with a meeting of the angles at the apex.
Archaeological: Egyptian, Mayan and Inca pyramids. The most famous pyramid is the Great Pyramid of Cheops.
Organizational: A pyramid structure is a hierarchical organization more people in lower positions and fewer in senior positions above them.
Pyramid schemes: Schemes where a few people sell bogus entitlements to larger numbers for rewards.
Examples of Pyramid:
|Their management structure is a classic pyramid.|
This is just pyramid selling, not real business.
The pyramid is a common feature of several ancient cultures.
Pyramid of khafra
The 1-skeleton of pyramid is a wheel graph