Topic summary
Right pyramid
Extracted from the Wikipedia article Pyramid (geometry).
Classification and types
Some sources define the term "right pyramid" only as a special case for regular pyramids, while others define it for the general case of any shape of a base. Other sources define only the term "right pyramid" to include within its definition the regular base. Rarely, a "right pyramid" is defined to be a pyramid whose base is circumscribed about a circle and the altitude of the pyramid meets the base at the circle's center.