URI: http://registry.it.csiro.au/def/qudt/1.1/qudtquantity/Angle
no description supplied
description 
The inclination to each other of two intersecting lines, measured by the arc of a circle intercepted between the two lines forming the angle, the center of the circle being the point of intersection. An acute angle is less than 90°; a right angle 90 °; an obtuse angle, more than 90° but less than 180 °; a straight angle, 180°; a reflex angle, more than 180° but less than 360°; a perigon, 360°. Any angle not a multiple of 90° is an oblique angle. If the sum of two angles is 90°, they are complementary angles; if 180°, supplementary angles; if 360°, explementary angles. Two adjacent angles have a common vertex and lie on opposite sides of a common side. A dihedral angle is the angle between two intersecting planes. A spherical angle is the angle between two intersecting great circles.

exact match 
Angle
 Angle

generalization 
Dimensionless Ratio

label 
Angle

specialization 
Solid Angle
 Plane Angle

type 
space and time quantity kind
 quantity kind
