plane angle
[/pleɪn ˈæŋɡəl/]
nounpl: plane angles
ângulo plano
1. An angle formed by two rays sharing a common endpoint in a plane; the geometric figure consisting of two half-lines with a common vertex
The plane angle between the two lines is 45 degrees.
O ângulo plano entre as duas linhas é de 45 graus.
2. In solid geometry, the angle formed by the intersection of two planes or the angle measured within a single plane surface
The dihedral angle can be measured by examining the plane angle at the edge where two surfaces meet.
O ângulo diedro pode ser medido examinando o ângulo plano na aresta onde duas superfícies se encontram.
The term 'plane angle' is primarily used in mathematical and engineering contexts in both English-speaking countries and Brazil. It is a fundamental concept taught in geometry courses and is essential terminology for engineers, architects, and mathematicians. The Brazilian Portuguese term 'ângulo plano' is standardized in academic curricula and technical documentation.
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