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unit of measure: the base unit | the supplementary unit | the derived unit

*geometry: the area of a flat figure | the area of a solid | the volume of the solid*

A ** regular quadrilateral pyramid** is a polyhedron, one of which faces, that has the role of base, is a square, and the other – lateral faces are similar triangles with a common apex. The apex is lowered to the base through its height.

The ** volume of a regular quadrilateral pyramid ** is one third from the product of the base and height (OS) of it.

where:

a — the side of a square from a pyramid base;

h — the height of a pyramid.

*For separation of number integers and decimals, use the symbol – point [.]*

context information: contemporary and archaic unit of measurement of area