Right-angled
101Antwerp — /an tweuhrp/, n. 1. a seaport in N Belgium, on the Scheldt. 209,200. 2. a province in N Belgium. 1,559,269; 1104 sq. mi. (2860 sq. km). French, Anvers. Flemish, Antwerpen /ahnt ver peuhn/. * * * French Anvers Flemish Antwerpen City (pop., 2000… …
102Area of a disk — Part of a series of articles on the mathematical constant π …
103Dirmstein — Dirmstein …
104Parallel postulate — In geometry, the parallel postulate, also called Euclid s fifth postulate since it is the fifth postulate in Euclid s Elements , is a distinctive axiom in what is now called Euclidean geometry. It states that: If a line segment intersects two… …
105Spherical trigonometry — Spherical triangle Spherical trigonometry is a branch of spherical geometry which deals with polygons (especially triangles) on the sphere and the relationships between the sides and the angles. This is of great importance for calculations in… …
106plumb — Synonyms and related words: T square, absolute, absolutely, accurately, all embracing, all encompassing, all out, all pervading, answer, aplomb, appraise, appreciate, assay, assess, at right angles, azimuth circle, bang, bar, barricade, batten,… …
107Descartes: methodology — Stephen Gaukroger INTRODUCTION The seventeenth century is often referred to as the century of the Scientific Revolution, a time of fundamental scientific change in which traditional theories were either replaced by new ones or radically… …
108normal — Synonyms and related words: academe, academia, accepted, according to Hoyle, air line, all there, alma mater, appropriate, arranged, average, axis, azimuth circle, balance, balanced, banal, beeline, besetting, bourgeois, businesslike, center,… …
109Altitude (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 …
110Château de Saint-Cloud — Château of Saint Cloud General information Type Palace Architectural style French Baroque, Neo Classical Construction started c.1570 Completed c.1701 …
