Linked from
The 7 pages that link to Angular acceleration, each with the reason it gives.
TorqueRelated: Net torque determines angular acceleration when rotational inertia is specified.
Angular velocityRelated: It describes how angular velocity varies during rotational motion.
Static equilibriumRelated: Static equilibrium requires angular acceleration to vanish.
Rotational motionRelated: It describes changes in rotational speed or direction.