pentadecagon

English

Etymology

From pentadeca- +‎ -gon.

Pronunciation

• IPA^(key): /ˌpɛntəˈdɛkəɡən/

• Audio (UK):

  (file)

Noun

pentadecagon (plural pentadecagons)

1. (geometry) A polygon with fifteen sides.
   • 2003, Steven Atiyah, Essentials of Geometry, Trafford, published 2003, page 357:

     In ⊙ O, draw chord AB equal to r. Draw chord AC equal to Vt (which is the side of a regular decagon). CB is now one side of the regular pentadecagon.

Synonyms

• 15-gon
• quindecagon

Related terms

• pentadecagonal

Translations

15-sided polygon

• Belarusian: пятнаццацікутнік m (pjatnaccacikutnik)
• Bulgarian: петнадесетоъгълник m (petnadesetoǎgǎlnik)
• Catalan: pentadecàgon m
• Chinese:

  Mandarin: 十五邊形／十五边形 (zh) (shíwǔ biānxíng)

• Czech: patnáctiúhelník (cs) m
• Dutch: vijftienhoek (nl) m
• Esperanto: dekkvinlatero
• Finnish: viisitoistakulmio
• French: pentadécagone (fr) m, pentédécagone (fr) m
• Galician: pentadecágono (gl) m
• Georgian: თხუთმეტკუთხედი (txutmeṭḳutxedi)
• German: Fünfzehneck (de) n
• Greek: δεκαπεντάγωνο n (dekapentágono)
• Hungarian: tizenötszög (hu)
• Italian: pentadecagono (it) m
• Japanese: 十五角形 (jūrokukakukei)
• Korean: 십오각형 (sibogakhyeong)
• Macedonian: петнаесетаголник m (petnaesetagolnik)
• Polish: piętnastokąt m
• Portuguese: pentadecágono (pt) m
• Romanian: pentadecagon (ro) n
• Russian: пятнадцатиугольник (ru) m (pjatnadcatiugolʹnik)
• Serbo-Croatian:

  Cyrillic: петнаестоугао m

  Roman: petnaestougao m

• Slovene: petnajstkotnik m
• Spanish: pentadecágono (es) m
• Swedish: pentadekagon m
• Thai: รูปสิบห้าเหลี่ยม m
• Turkish: ondörtgen m
• Ukrainian: п'ятнадцятикутник (pʺjatnadcjatykutnyk)

Romanian

Etymology

Borrowed from French pentadécagone.

Noun

pentadecagon n (plural pentadecagoane)

1. pentadecagon

Declension

	singular			plural
	indefinite	definite		indefinite	definite
nominative-accusative	pentadecagon	pentadecagonul		pentadecagoane	pentadecagoanele
genitive-dative	pentadecagon	pentadecagonului		pentadecagoane	pentadecagoanelor
vocative	pentadecagonule			pentadecagoanelor