# obtuse

• 101Triangle spider — Triangle Tri an gle, n. [L. triangulum, fr. triangulus triangular; tri (see {Tri }) + angulus angle: cf. F. triangle. See {Angle} a corner.] 1. (Geom.) A figure bounded by three lines, and containing three angles. [1913 Webster] Note: A triangle&#8230; …

The Collaborative International Dictionary of English

• 102dull — I. adjective Etymology: Middle English dul; akin to Old English dol foolish, Old Irish dall blind Date: 13th century 1. mentally slow ; stupid 2. a. slow in perception or sensibility ; insensible < somewhat dull of h …

New Collegiate Dictionary

• 103OBTUS, USE — adj. T. d’Histoire naturelle Qui est arrondi, émoussé au lieu d’être anguleux ou pointu. Poisson à tête obtuse. Feuille obtuse. Il se dit, par analogie, en termes de Géométrie, d’un Angle plus grand, plus ouvert qu’un angle droit. Angle obtus.&#8230; …

Dictionnaire de l'Academie Francaise, 8eme edition (1935)

• 104Golden ratio — For the Ace of Base album, see The Golden Ratio (album). Not to be confused with Golden number. The golden section is a line segment divided according to the golden ratio: The total length a + b is to the length of the longer segment a as the&#8230; …

Wikipedia

• 105Pythagorean theorem — See also: Pythagorean trigonometric identity The Pythagorean theorem: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c) …

Wikipedia

• 106Deductive reasoning — Deductive reasoning, also called deductive logic, is reasoning which constructs or evaluates deductive arguments. Deductive arguments are attempts to show that a conclusion necessarily follows from a set of premises or hypotheses. A deductive&#8230; …

Wikipedia

• 107Aceratorchis — Taxobox name = Aceratorchis regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Asparagales familia = Orchidaceae subfamilia = Orchidoideae tribus = Orchideae subtribus = Orchidinae alliance = Orchis genus = Aceratorchis genus&#8230; …

Wikipedia

• 108Circumscribed circle — Circumscribed circle, C, and circumcenter, O, of a cyclic polygon, P In geometry, the circumscribed circle or circumcircle of a polygon is a circle which passes through all the vertices of the polygon. The center of this circle is called the&#8230; …

Wikipedia

• 109Pachypodium ambongense — Taxobox name = Pachypodium ambongense regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Gentianales familia = Apocynaceae genus = Pachypodium species = P. ambongense binomial = Pachypodium ambongense binomial authority =&#8230; …

Wikipedia

• 110Pachypodium baronii — Taxobox name = Pachypodium baronii image width = 150px regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Gentianales familia = Apocynaceae genus = Pachypodium species = P. baronii binomial = Pachypodium baronii binomial&#8230; …

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