ISQ
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3-5

angular measure, angular measure

URNurn:iso:std:iso:80000:-3:ed-2:en:item:3-5
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urn:iso:std:iso:80000:-3:ed-2:en:item:3-5
ISQ Identifiers
ISO
urn:iso:std:iso:80000:-3:ed-2:en:item:3-5
IEC
urn:iec:std:iec:80000-3:2019:::item:3-5
Designations
ENangular measure
FRangle
ENangular measure
FRangle plan
Symbol
α
β
γ
Notation systems
Rendered
α
Rendered
β
Rendered
γ
AsciiMath
alpha
AsciiMath
beta
AsciiMath
gamma
LaTeX
\alpha
LaTeX
\beta
LaTeX
\gamma

Definition

EN

measure of a geometric figure, called plane angle, formed by two rays, called the sides of the plane angle, emanating from a common point, called the vertex of the plane angle

FR

grandeur associée à une figure géométrique, appelée aussi angle, formée par deux demi-droites, appelées les côtés de l'angle, ayant pour origine le même point, appelé le sommet de l'angle

Notes

EN

The angular measure is given by:

α = s r

where s denotes the arc length (path length) of the included arc of a circle, centred at the vertex of the plane angle, and r the radius (radius) of that circle.

Other symbols are also used.

FR

L'angle est donné par:

α = s r

où s désigne la longueur curviligne (path length) de l'arc de cercle inclus, centré sur le sommet de l'angle, et r le rayon (radius) de ce cercle.

D'autres symboles sont également utilisés.

Referenced by

Concept HierarchyPendrill (2024)
1dimensionless quantitiesLevel 0 · Kind

Ontology

Class Hierarchy

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

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measure of a geometric figure, called plane angle, formed by two rays, called the sides of the plane angle, emanating fr…
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The angular measure is given by: [stem%unnumbered] ++++ alpha = s/r ++++ where stem:[s] denotes the arc length (<<t3-1…
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