A closed two-dimensional polygon bounded by seven straight-line segments.The formula with which to find an equilateral heptagon's area is 3.6339 times the length of one side squared. Also see mathematics, radial, shape, and vertex.

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  • heptagon — HEPTAGÓN, heptagoane, s.n. Poligon cu şapte laturi şi cu şapte unghiuri. – Din fr. heptagone. Trimis de gall, 13.09.2007. Sursa: DEX 98  heptagón s. n., pl. heptagoáne Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  HEPTAG//ÓN… …   Dicționar Român

  • heptagon — 1560s, from M.Fr. heptagon, from Gk. heptagonon, from hepta seven (cognate with L. septem, Goth. sibun, O.E. seofon; see SEVEN (Cf. seven)) + gonia angle (see KNEE (Cf. knee)). Related: Heptagonal …   Etymology dictionary

  • Heptagon — Hep ta*gon, n. [Gr. ? sevencornered; epta seven + ? angle: cf. F. heptagone.] (Geom.) A plane figure consisting of seven sides and having seven angles. [1913 Webster] …   The Collaborative International Dictionary of English

  • Heptagōn — (gr.), Siebeneck. Heptagonalzahl (Siebeneckszahl), die Polygonalzahl (s.d.) der fünften Reihe, da ihre zweite Differenz die 7 ist …   Pierer's Universal-Lexikon

  • Heptagōn — (griech.), Siebeneck …   Meyers Großes Konversations-Lexikon

  • Heptagon — Heptagōn (grch.), Siebeneck …   Kleines Konversations-Lexikon

  • heptagon — hȅptagōn m DEFINICIJA mat. sedmerokut ETIMOLOGIJA grč. heptágōnos ≃ hepta + gon1 …   Hrvatski jezični portal

  • heptagon — ► NOUN ▪ a plane figure with seven straight sides and angles …   English terms dictionary

  • heptagon — [hep′tə gän΄] n. [< Gr heptagōnos, seven cornered: see HEPTA & GON] a plane figure with seven angles and seven sides heptagonal [hep′tag′ə nəl] adj …   English World dictionary

  • Heptagon — In geometry, a heptagon is a polygon with seven sides and seven angles. In a regular heptagon, in which all sides and all angles are equal, the sides meet at an angle of 5π/7 radians, 128.5714286 degrees. Its Schläfli symbol is {7}. The area of a …   Wikipedia

  • heptagon — UK [ˈheptəɡən] / US [ˈheptəˌɡɑn] noun [countable] Word forms heptagon : singular heptagon plural heptagons maths a geometric shape with seven straight sides. Something in the shape of a heptagon is heptagonal …   English dictionary

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