noun🔗ShareRadiánIn the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad"The pizza slice measured an angle of 0.5 radians, meaning the crust's length was half the pizza's radius. "La porción de pizza medía un ángulo de 0,5 radianes, lo que significa que la longitud de la corteza era la mitad del radio de la pizza.mathphysicstechnicalunitChat with AIVocabulary GamePractice Reading