Linked from
The 10 pages that link to Angular displacement, each with the reason it gives.
TorqueRelated: It describes the rotational motion that torque can initiate or change.
Angular velocityRelated: Angular velocity is the time rate of this change.
DisplacementRelated: It is the rotational counterpart of translational displacement.
Rotational motionRelated: It specifies how far an object turns.
Radian per secondRelated: A change in this quantity forms the numerator of angular velocity.