intersecting triangle

См. также в других словарях:

• Triangle group — In mathematics, a triangle group is a group that can be realized geometrically by sequences of reflections across the sides of a triangle. The triangle can be an ordinary Euclidean triangle, a triangle on the sphere, or a hyperbolic triangle.… …   Wikipedia

• Altitude (triangle) — Orthocenter and Orthocentre redirect here. For the orthocentric system, see Orthocentric system. Three altitudes intersecting at the orthocenter In geometry, an altitude of a triangle is a straight line through a vertex and perpendicular to (i.e …   Wikipedia

• circular triangle — a triangle whose sides are arcs of circles. * * * circular triangle, a triangle formed by three intersecting circular arcs …   Useful english dictionary

• Isosceles Triangle Theorem — If two sides of a triangle are congruent, then the angles opposite to them are congruent.Given: In ∆ABC, Side ABSide AC. To Prove: ABCACB. Construction: Draw the bisector of BAC, intersecting Side BC in point D. Proof:Hence, proved …   Wikipedia

• Polytetrahedron — is a term used for three distinct types of objects, all basedon the tetrahedron:*A uniform convex polychoron made up of 600 tetrahedral cells. It is more commonly known as a 600 cell or hexacosichoron. Other derivative polychora are identified as …   Wikipedia

• Polygon — For other uses, see Polygon (disambiguation). Some polygons of different kinds In geometry a polygon (   …   Wikipedia

• Golden 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… …   Wikipedia

• Tetrahedron — For the academic journal, see Tetrahedron (journal). Regular Tetrahedron (Click here for rotating model) Type Platonic solid Elements F = 4, E = 6 V = 4 (χ = 2) Faces by s …   Wikipedia

• Hyperbolic geometry — Lines through a given point P and asymptotic to line R. A triangle immersed in a saddle shape plane (a hyperbolic paraboloid), as well as two diverging ultraparall …   Wikipedia

• Median graph — The median of three vertices in a median graph In mathematics, and more specifically graph theory, a median graph is an undirected graph in which any three vertices a, b, and c have a unique median: a vertex m(a,b,c) that belongs to shortest… …   Wikipedia

• Angle — This article is about angles in geometry. For other uses, see Angle (disambiguation). Oblique angle redirects here. For the cinematographic technique, see Dutch angle. ∠, the angle symbol In geometry, an angle is the figure formed by two rays… …   Wikipedia