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- Diameter abstract "In geometry, the diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. The word "diameter" is derived from Greek διάμετρος (diametros), "diameter of a circle", from δια- (dia-), "across, through" + μέτρον (metron), "measure". It is often abbreviated DIA, dia, d, or ⌀.In more modern usage, the length of a diameter is also called the diameter. In this sense one speaks of the diameter rather than a diameter (which refers to the line itself), because all diameters of a circle or sphere have the same length, this being twice the radius r. For a convex shape in the plane, the diameter is defined to be the largest distance that can be formed between two opposite parallel lines tangent to its boundary, and the width is defined to be the smallest such distance. Both quantities can be calculated efficiently using rotating calipers. For a curve of constant width such as the Reuleaux triangle, the width and diameter are the same because all such pairs of parallel tangent lines have the same distance.".
- Diameter thumbnail Circle-withsegments.svg?width=300.
- Diameter wikiPageID "8007".
- Diameter wikiPageRevisionID "599461047".
- Diameter hasPhotoCollection Diameter.
- Diameter subject Category:Circles.
- Diameter subject Category:Elementary_geometry.
- Diameter subject Category:Length.
- Diameter comment "In geometry, the diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere. The word "diameter" is derived from Greek διάμετρος (diametros), "diameter of a circle", from δια- (dia-), "across, through" + μέτρον (metron), "measure".".
- Diameter label "Diameter".
- Diameter label "Diameter".
- Diameter label "Diametro".
- Diameter label "Diamètre".
- Diameter label "Diámetro".
- Diameter label "Diâmetro".
- Diameter label "Durchmesser".
- Diameter label "Średnica".
- Diameter label "Диаметр".
- Diameter label "قطر (هندسة)".
- Diameter label "径".
- Diameter label "直径".
- Diameter sameAs Průměr_(geometrie).
- Diameter sameAs Durchmesser.
- Diameter sameAs Διάμετρος.
- Diameter sameAs Diámetro.
- Diameter sameAs Diametro.
- Diameter sameAs Diamètre.
- Diameter sameAs Diameter.
- Diameter sameAs Diametro.
- Diameter sameAs 径.
- Diameter sameAs 지름.
- Diameter sameAs Diameter.
- Diameter sameAs Średnica.
- Diameter sameAs Diâmetro.
- Diameter sameAs m.0277z.
- Diameter sameAs Q37221.
- Diameter sameAs Q37221.
- Diameter wasDerivedFrom Diameter?oldid=599461047.
- Diameter depiction Circle-withsegments.svg.
- Diameter isPrimaryTopicOf Diameter.