Definition of apothem in English:

apothem

Syllabification: ap·o·them
Pronunciation: /ˈapəˌTHem
 
/

noun

Geometry
  • A line from the center of a regular polygon at right angles to any of its sides.
    More example sentences
    • Given a circle, the apothem is the perpendicular distance from the midpoint of a chord to the circle's center.
    • Once the perimeter and the apothem are known, the formula relating the two to area can be used to solve for the area.
    • For a polygon of n sides, there are n possible apothems, all the same length of course.

Origin

late 19th century: from Greek apotithenai 'put aside, deposit', from apo 'away' + tithenai 'to place'.

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