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...

Self-conjugate :: Self-conjugate (a.) Having the two things that are conjugate parts of the same figure; as, self-conjugate triangles..

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

Triangle :: Triangle (n.) A small constellation situated between Aries and Andromeda.

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..

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

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

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

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

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

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

Triangle :: Triangle (n.) An instrument of percussion, usually made of a rod of steel, bent into the form of a triangle, open at one angle, and sounded by being struck with a small metallic rod..

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

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..

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..

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..

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

Hypothenuse :: Hypothenuse (n.) The side of a right-angled triangle that is opposite to the right angle.

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..

Cone :: Cone (n.) A solid of the form described by the revolution of a right-angled triangle about one of the sides adjacent to the right angle; -- called also a right cone. More generally, any solid having a vertical point and bounded by a surface which is described by a straight line always passing through that vertical point; a solid having a circle for its base and tapering to a point or vertex..

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

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