noun🔗ShareIn 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. "mathphysicstechnicalunitChat with AIVocabulary GamePractice Reading
