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a perpendicular from the center of a regular polygon to one of its sides.
Historical Examples

The “apothem is a perpendicular from the vertex of a pyramid on a side of the base.”
The Solution of the Pyramid Problem Robert Ballard

I have mentioned the above to show how very nearly these ratios agree with my exact ratio of 21 to 34 half base to apothem.
The Solution of the Pyramid Problem Robert Ballard

A peculiarity of this pyramid is, that base is to altitude as apothem is to half base.
The Solution of the Pyramid Problem Robert Ballard

In any pyramid, the apothem is to half the base as the area of the four sides is to the area of the base.
The Solution of the Pyramid Problem Robert Ballard

the perpendicular line or distance from the centre of a regular polygon to any of its sides


Read Also:

  • Apotheosis

    the elevation or exaltation of a person to the rank of a god. the ideal example; epitome; quintessence: This poem is the apotheosis of lyric expression. Contemporary Examples Over the course of these novels, the style becomes increasingly parsimonious, reaching its apotheosis in The Golden Bowl. Henry James’s 1904 Sordid Little Sex Farce Nathaniel Rich […]

  • Apotheosize

    to deify; glorify. Historical Examples The Devas sprung from the Pitris, because it was usual to apotheosize the dead. India: What can it teach us? F. Max Mller verb (transitive) to deify to glorify or idealize v. 1760; see apotheosis + -ize. Related: Apotheosized; apotheosizing. Earlier in same sense was apotheose (1670s).

  • Apothesis

    n. 1811, from Greek apothesis “a laying up in store; a putting aside,” noun of action from apotithenai “to lay aside,” from apo- “off, away” (see apo-) + tithenai (see theme).

  • Apotropaic

    intended to ward off evil. Historical Examples But the term “apotropaic” is generally used of expulsive ceremonies in which a whole community takes part. Introduction to the History of Religions Crawford Howell Toy adjective preventing or intended to prevent evil adj. 1883, with -ic + Greek apotropaios “averting evil,” from apotrepein “to turn away, avert,” […]

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