apothem

[ ap-uh-them ]

noun

, Geometry.

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

apothem

/ ˈæpəˌθɛm /

noun

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

Word History and Origins

Origin of apothem¹

1855–60; < French apothème, probably on the model of Greek hypóthēma base; apo-, theme

Word History and Origins

Origin of apothem¹

C20: from apo- + Greek thema, from tithenai to place

Example Sentences

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.

From Project Gutenberg

In the Pyramid Cheops, altitude is very nearly a mean proportional between apothem and half base.

From Project Gutenberg

The "Apothem is a perpendicular from the vertex of a pyramid on a side of the base."

From Project Gutenberg

In any pyramid, the apothem is to half the base as the area of the four sides is to the area of the base.

From Project Gutenberg

A peculiarity of this pyramid is, that base is to altitude as apothem is to half base.

From Project Gutenberg