three-dimensional angle

[/θriː dɪˈmɛnʃənəl ˈæŋɡəl/]
nounpl: three-dimensional angles
ângulo tridimensional
1. An angle formed by three planes or three lines in three-dimensional space, or the angle between two lines or planes in 3D geometry
The three-dimensional angle between the two intersecting planes was calculated using vector methods.
O ângulo tridimensional entre os dois planos que se interceptam foi calculado usando métodos de vetores.
2. A solid angle; the angle subtended by a surface at a point in three-dimensional space, measured in steradians
The solid angle, or three-dimensional angle, of a sphere as viewed from its center is 4π steradians.
O ângulo sólido, ou ângulo tridimensional, de uma esfera quando visto de seu centro é 4π esterradianos.
This is a technical term primarily used in mathematics, physics, engineering, and architecture. It is equally understood across Brazil and Portugal in academic contexts. In the USA, the term 'solid angle' is often preferred in scientific literature, particularly in physics and astronomy fields.
Synonyms / Sinônimos
solid angle3D anglespatial angleângulo sólidoângulo espacial
Antonyms / Antônimos
two-dimensional angleplane angleângulo plano

Regional Variations

General Brazilian
ângulo tridimensional
Standard term used in mathematics and engineering contexts
São Paulo
ângulo tridimensional
Common in academic and technical education
Portugal
ângulo tridimensional
Formal mathematical term used in Portuguese universities
USA English
three-dimensional angle or solid angle
Solid angle is more commonly used in physics and astronomy

Related Words

plane anglesolid anglesteradianvectordihedral anglespatial geometryângulo diedrogeometria espacial

Related Idioms & Phrases

calculate a three-dimensional angle
measure the three-dimensional angle
in three dimensions
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