altitude theorem
1Altitude (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 …
2Pythagorean 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) …
3Viviani's theorem — is the theorem named after Vincenzo Viviani stating that the sum of the distances from a point to the sides of an equilateral triangle equals the length of its altitude.The theorem can be extended to equilateral polygons and equiangular polygons …
4Triangle — This article is about the basic geometric shape. For other uses, see Triangle (disambiguation). Isosceles and Acute Triangle redirect here. For the trapezoid, see Isosceles trapezoid. For The Welcome to Paradox episode, see List of Welcome to… …
5Limit of a function — x 1 0.841471 0.1 0.998334 0.01 0.999983 Although the function (sin x)/x is not defined at zero, as x becomes closer and closer to zero, (sin x)/x becomes arbitrarily close to 1. It is said that the limit of (sin x)/x as x approache …
6Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
7Heat capacity — Thermodynamics …
8Horizon — For other uses, see Horizon (disambiguation). A water horizon, in northern Wisconsin, U.S. The horizon (or skyline) is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that… …
9Théorème du point fixe de Brouwer — En 1886 Henri Poincaré démontre un résultat équivalent au théorème du point fixe de Brouwer. L énoncé exact est prouvé pour la dimension trois par Piers Bohl pour la première fois en 1904, puis par Jacques Hadamard dans le cas général en 1910.… …
10Chain rule — For other uses, see Chain rule (disambiguation). Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus  Derivative Change of variables Implicit differentiation …
