Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of triangle is as below...

Trilateral :: Trilateral (a.) Having three sides; being three-sided; as, a trilateral triangle..

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

Coincide :: Coincide (n.) To occupy the same place in space, as two equal triangles, when placed one on the other..

Tetrahedron :: Tetrahedron (n.) A solid figure inclosed or bounded by four triangles.

Triangle :: Triangle (n.) A small constellation near the South Pole, containing three bright stars..

Oblique-angled :: Oblique-angled (a.) Having oblique angles; as, an oblique-angled triangle..

Pentacle :: Pentacle (n.) A figure composed of two equilateral triangles intersecting so as to form a six-pointed star, -- used in early ornamental art, and also with superstitious import by the astrologers and mystics of the Middle Ages..

Triangle :: Triangle (n.) A draughtsman's square in the form of a right-angled triangle.

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..

Altitude :: Altitude (n.) The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc..

Transmutation :: Transmutation (n.) The change or reduction of one figure or body into another of the same area or solidity, but of a different form, as of a triangle into a square..

Transversal :: Transversal (n.) A straight line which traverses or intersects any system of other lines, as a line intersecting the three sides of a triangle or the sides produced..

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

Triangular :: Triangular (a.) Having three angles; having the form of a triangle.

Three-square :: Three-square (a.) Having a cross section in the form of an equilateral triangle; -- said especially of a kind of file.

Scalene :: Scalene (n.) A triangle having its sides and angles unequal.

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

Cepheus :: Cepheus (n.) A northern constellation near the pole. Its head, which is in the Milky Way, is marked by a triangle formed by three stars of the fourth magnitude. See Cassiopeia..

Rib :: Rib (n.) In Gothic vaulting, one of the primary members of the vault. These are strong arches, meeting and crossing one another, dividing the whole space into triangles, which are then filled by vaulted construction of lighter material. Hence, an imitation of one of these in wood, plaster, or the like..

Area :: Area (n.) The superficial contents of any figure; the surface included within any given lines; superficial extent; as, the area of a square or a triangle..

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