How to understand that the direction of moment, angular velocity and angular acceleration is along the axis when a rigid body rotates? Why is the moment generated by a tangent force acting on a rigid body perpendicular to the plane and along the axis?

How to understand that the direction of moment, angular velocity and angular acceleration is along the axis when a rigid body rotates? Why is the moment generated by a tangent force acting on a rigid body perpendicular to the plane and along the axis?

Torque is a vector, but don't mix the direction of torque with the direction of rotation of the object. The direction of torque is determined by the person himself, because the person has a right hand, so according to the right hand rule, only the thumb direction points to the direction of torque, then the four surrounding directions are the direction of rotation of the force to the rigid body. They are the vector product of vectors