Ontology

Overview / Open Energy Ontology / Class - radian based unit

Label: radian based unit

Sub classes:

Definition:

"A plane angle unit which is equal to the angle subtended at the center of a circle by an arc equal in length to the radius of the circle, approximately 57 degrees 17 minutes and 44.6 seconds." [NIST:NIST]

Back to the super classes:

plane angle unit

view

Definition:

"A unit which is a standard measure of the angle formed by two straight lines in the same plane." [Wikipedia:Wikipedia]