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Triangulation :: Triangulation (n.) The series or network of triangles into which the face of a country, or any portion of it, is divided in a trigonometrical survey; the operation of measuring the elements necessary to determine the triangles into which the country to be surveyed is supposed to be divided, and thus to fix the positions and distances of the several points connected by them..

Incenter :: Incenter (n.) The center of the circle inscribed in a triangle.

Trigonometry :: Trigonometry (n.) That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles..

Triangled :: Triangled (a.) Having three angles; triangular.

Triangle :: Triangle (n.) A figure bounded by three lines, and containing three angles..

Circumcenter :: Circumcenter (n.) The center of a circle that circumscribes a triangle.

Orthocenter :: Orthocenter (n.) That point in which the three perpendiculars let fall from the angles of a triangle upon the opposite sides, or the sides produced, mutually intersect..

Triangle :: Triangle (n.) A kind of frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment, -- now disused..

Scalene :: Scalene (a.) Having the sides and angles unequal; -- said of a triangle.

Obtuse-angular :: obtuse-angular (a.) Having an obtuse angle; as, an obtuse-angled triangle..

Trigon :: Trigon (n.) A kind of game at ball played by three persons standing at the angular points of a triangle.

Acute-angled :: Acute-angled (a.) Having acute angles; as, an acute-angled triangle, a triangle with every one of its angles less than a right angle..

Sphenoid :: Sphenoid (n.) A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.

Birectangular :: Birectangular (a.) Containing or having two right angles; as, a birectangular spherical triangle..

Chorograph :: Chorograph (n.) An instrument for constructing triangles in marine surveying, etc..

Trinity :: Trinity (n.) Any symbol of the Trinity employed in Christian art, especially the triangle..

Octahedron :: Octahedron (n.) A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.

Revolution :: Revolution (n.) The motion of a point, line, or surface about a point or line as its center or axis, in such a manner that a moving point generates a curve, a moving line a surface (called a surface of revolution), and a moving surface a solid (called a solid of revolution); as, the revolution of a right-angled triangle about one of its sides generates a cone; the revolution of a semicircle about the diameter generates a sphere..

Triangularly :: Triangularly (adv.) In a triangular manner; in the form of a triangle.

Spider''s Web :: Spider's web () The silken web which is formed by most kinds of spiders, particularly the web spun to entrap their prey. See Geometric spider, Triangle spider, under Geometric, and Triangle..

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