interior angle
[ɪnˈtɪriər ˈæŋɡəl]
nounpl: interior angles
ângulo interno
1. An angle formed inside a polygon between two adjacent sides
The sum of interior angles in a triangle is always 180 degrees.
A soma dos ângulos internos de um triângulo é sempre 180 graus.
2. In geometry, any angle that lies within the boundaries of a geometric figure
Each interior angle of a regular hexagon measures 120 degrees.
Cada ângulo interno de um hexágono regular mede 120 graus.
This is a technical mathematical term used uniformly across English-speaking and Portuguese-speaking countries in educational and scientific contexts. It is fundamental to geometry curricula in both Brazil and the United States, with no cultural variation in meaning or usage.
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