þríhyrningur

Icelandic

Etymology

From þrí- (“tri-”, from þrír (“three”)) +‎ hyrningur (“polygon”).

Noun

þríhyrningur m (genitive singular þríhyrnings, nominative plural þríhyrningar)

  1. (geometry) a triangle

Derived terms
  • aðfelldur þríhyrningur (“asymptotic triangle”)
  • Ceva-þríhyrningur (“aliquot triangle, cevian triangle”)
  • einshyrndur þríhyrningur, einslaga þríhyrningur (“similar triangle”)
  • fótpunktaþríhyrningur (“pedal triangle”)
  • hornalínuþríhyrningur (“diagonal triangle”)
  • hringbogaþríhyrningur (“circular triangle”)
  • hæðafótpunktaþríhyrningur (“orthic triangle”)
  • jafnhliða þríhyrningur (“equilateral triangle, regular triangle”)
  • kúluþríhyrningur (“spherical triangle”)
  • mishliða þríhyrningur, ójafnarma þríhyrningur (“scalene triangle”)
  • Pascal-þríhyrningur, þríhyrningur Pascals (“Pascal's triangle”)
  • pýþagórskur þríhyrningur (“Pythagorean triangle”)
  • rétthyrndur þríhyrningur (“right triangle, right-angled triangle”)
  • sjálfskautaður þríhyrningur (“self-polar triangle”)
  • skautþríhyrningur (“polar triangle”)
  • skáhyrndur þríhyrningur (“oblique triangle”)
  • tvíaðfelldur þríhyrningur (“doubly asymptotic triangle”)
  • þríaðfelldur þríhyrningur (“trebly asymptotic triangle”)

See also
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