circumscribing circle

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• Circle — This article is about the shape and mathematical concept. For other uses, see Circle (disambiguation). Circle illustration showing a radius, a diameter, the centre and the circumference …   Wikipedia

• Measurement of a Circle — (Greek: Κύκλου μέτρησις, Kuklou metrēsis) is a treatise that consists of three propositions by Archimedes. The treatise is only a fraction of what was a longer work.[1][2] Contents 1 Propositions …   Wikipedia

• Thales' theorem — In geometry, Thales theorem (named after Thales of Miletus) states that if A, B and C are points on a circle where the line AC is a diameter of the circle, then the angle ABC is a right angle. Thales theorem is a special case of the inscribed… …   Wikipedia

• Greek arithmetic, geometry and harmonics: Thales to Plato — Ian Mueller INTRODUCTION: PROCLUS’ HISTORY OF GEOMETRY In a famous passage in Book VII of the Republic starting at Socrates proposes to inquire about the studies (mathēmata) needed to train the young people who will become leaders of the ideal… …   History of philosophy

• Extrusion — is a process used to create objects of a fixed cross sectional profile. A material is pushed or drawn through a die of the desired cross section. The two main advantages of this process over other manufacturing processes is its ability to create… …   Wikipedia

• Quadrilateral — This article is about four sided mathematical shapes. For other uses, see Quadrilateral (disambiguation). Quadrilateral Six different types of quadrilaterals Edges and vertices 4 …   Wikipedia

• radius — /ˈreɪdiəs / (say raydeeuhs) noun (plural radii /ˈreɪdiaɪ/ (say raydeeuy) or radiuses) 1. a straight line extending from the centre of a circle or sphere to the circumference or surface. 2. the length of such a line. 3. any radial or radiating… …  

• Eccentric anomaly — The eccentric anomaly is the angle between the direction of periapsis and the current position of an object on its orbit, projected onto the ellipse s circumscribing circle perpendicularly to the major axis, measured at the centre of the ellipse …   Wikipedia

• Euclidean geometry — A Greek mathematician performing a geometric construction with a compass, from The School of Athens by Raphael. Euclidean geometry is a mathematical system attributed to the Alexandrian Greek mathematician Euclid, which he described in his… …   Wikipedia

• Archimedes — /ahr keuh mee deez/, n. 287? 212 B.C., Greek mathematician, physicist, and inventor: discovered the principles of specific gravity and of the lever. * * * born с 290–280 BC, Syracuse, Sicily died 212/211 BC, Syracuse Legendary Greek inventor and… …   Universalium

• Geodesic dome — Spaceship Earth at Epcot, Walt Disney World, a geodesic sphere A geodesic dome is a spherical or partial spherical shell structure or lattice shell based on a network of great circles (geodesics) on the surface of a sphere. The geodesics… …   Wikipedia